24 files changed, 2192 insertions, 1727 deletions

diff --git a/scene/2d/camera_2d.cpp b/scene/2d/camera_2d.cpp
index 0e55915957..2219437c14 100644
--- a/scene/2d/camera_2d.cpp
+++ b/scene/2d/camera_2d.cpp
@@ -483,8 +483,8 @@ void Camera2D::force_update_scroll() {
 }
 
 void Camera2D::reset_smoothing() {
-	smoothed_camera_pos = camera_pos;
 	_update_scroll();
+	smoothed_camera_pos = camera_pos;
 }
 
 void Camera2D::align() {
diff --git a/scene/2d/physics_body_2d.cpp b/scene/2d/physics_body_2d.cpp
index 9b4da2a77a..a382fb2f1e 100644
--- a/scene/2d/physics_body_2d.cpp
+++ b/scene/2d/physics_body_2d.cpp
@@ -1322,7 +1322,7 @@ int CharacterBody2D::get_max_slides() const {
 }
 
 void CharacterBody2D::set_max_slides(int p_max_slides) {
-	ERR_FAIL_COND(p_max_slides > 0);
+	ERR_FAIL_COND(p_max_slides < 1);
 	max_slides = p_max_slides;
 }
 
@@ -1396,7 +1396,7 @@ void CharacterBody2D::_bind_methods() {
 	ADD_PROPERTY(PropertyInfo(Variant::VECTOR2, "linear_velocity"), "set_linear_velocity", "get_linear_velocity");
 	ADD_PROPERTY(PropertyInfo(Variant::BOOL, "stop_on_slope"), "set_stop_on_slope_enabled", "is_stop_on_slope_enabled");
 	ADD_PROPERTY(PropertyInfo(Variant::BOOL, "infinite_inertia"), "set_infinite_inertia_enabled", "is_infinite_inertia_enabled");
-	ADD_PROPERTY(PropertyInfo(Variant::INT, "max_slides"), "set_max_slides", "get_max_slides");
+	ADD_PROPERTY(PropertyInfo(Variant::INT, "max_slides", PROPERTY_HINT_RANGE, "1,8,1,or_greater"), "set_max_slides", "get_max_slides");
 	ADD_PROPERTY(PropertyInfo(Variant::FLOAT, "floor_max_angle", PROPERTY_HINT_RANGE, "0,180,0.1"), "set_floor_max_angle", "get_floor_max_angle");
 	ADD_PROPERTY(PropertyInfo(Variant::VECTOR2, "snap"), "set_snap", "get_snap");
 	ADD_PROPERTY(PropertyInfo(Variant::VECTOR2, "up_direction"), "set_up_direction", "get_up_direction");
diff --git a/scene/2d/tile_map.cpp b/scene/2d/tile_map.cpp
index e9efa1cf84..6afa0c0779 100644
--- a/scene/2d/tile_map.cpp
+++ b/scene/2d/tile_map.cpp
@@ -34,6 +34,8 @@
 #include "core/math/geometry_2d.h"
 #include "core/os/os.h"
 
+#include "servers/navigation_server_2d.h"
+
 void TileMapPattern::set_cell(const Vector2i &p_coords, int p_source_id, const Vector2i p_atlas_coords, int p_alternative_tile) {
 	ERR_FAIL_COND_MSG(p_coords.x < 0 || p_coords.y < 0, vformat("Cannot set cell with negative coords in a TileMapPattern. Wrong coords: %s", p_coords));
 
@@ -235,40 +237,42 @@ Vector2i TileMap::transform_coords_layout(Vector2i p_coords, TileSet::TileOffset
 	return output;
 }
 
-int TileMap::get_effective_quadrant_size() const {
+int TileMap::get_effective_quadrant_size(int p_layer) const {
 	// When using YSort, the quadrant size is reduced to 1 to have one CanvasItem per quadrant
-	if (tile_set.is_valid() && tile_set->is_y_sorting()) {
+	if (is_y_sort_enabled() && layers[p_layer].y_sort_enabled) {
 		return 1;
 	} else {
 		return quadrant_size;
 	}
 }
 
-Vector2i TileMap::_coords_to_quadrant_coords(const Vector2i &p_coords) const {
-	int quadrant_size = get_effective_quadrant_size();
+void TileMap::set_selected_layer(int p_layer_id) {
+	ERR_FAIL_COND(p_layer_id < -1 || p_layer_id >= (int)layers.size());
+	selected_layer = p_layer_id;
+	emit_signal(SNAME("changed"));
+	_make_all_quadrants_dirty();
+}
 
-	// Rounding down, instead of simply rounding towards zero (truncating)
-	return Vector2i(
-			p_coords.x > 0 ? p_coords.x / quadrant_size : (p_coords.x - (quadrant_size - 1)) / quadrant_size,
-			p_coords.y > 0 ? p_coords.y / quadrant_size : (p_coords.y - (quadrant_size - 1)) / quadrant_size);
+int TileMap::get_selected_layer() const {
+	return selected_layer;
 }
 
 void TileMap::_notification(int p_what) {
 	switch (p_what) {
 		case NOTIFICATION_ENTER_TREE: {
 			pending_update = true;
-			_recreate_quadrants();
+			_recreate_internals();
 		} break;
 		case NOTIFICATION_EXIT_TREE: {
-			_clear_quadrants();
+			_clear_internals();
 		} break;
 	}
 
 	// Transfers the notification to tileset plugins.
 	if (tile_set.is_valid()) {
-		for (int i = 0; i < tile_set->get_tile_set_atlas_plugins().size(); i++) {
-			tile_set->get_tile_set_atlas_plugins()[i]->tilemap_notification(this, p_what);
-		}
+		_rendering_notification(p_what);
+		_physics_notification(p_what);
+		_navigation_notification(p_what);
 	}
 }
 
@@ -283,64 +287,210 @@ void TileMap::set_tileset(const Ref<TileSet> &p_tileset) {
 
 	// Set the tileset, registering to its changes.
 	if (tile_set.is_valid()) {
-		tile_set->disconnect("changed", callable_mp(this, &TileMap::_make_all_quadrants_dirty));
 		tile_set->disconnect("changed", callable_mp(this, &TileMap::_tile_set_changed));
 	}
 
 	if (!p_tileset.is_valid()) {
-		_clear_quadrants();
+		_clear_internals();
 	}
 
 	tile_set = p_tileset;
 
 	if (tile_set.is_valid()) {
-		tile_set->connect("changed", callable_mp(this, &TileMap::_make_all_quadrants_dirty), varray(true));
 		tile_set->connect("changed", callable_mp(this, &TileMap::_tile_set_changed));
-		_recreate_quadrants();
+		_recreate_internals();
 	}
 
 	emit_signal(SNAME("changed"));
 }
 
+void TileMap::set_quadrant_size(int p_size) {
+	ERR_FAIL_COND_MSG(p_size < 1, "TileMapQuadrant size cannot be smaller than 1.");
+
+	quadrant_size = p_size;
+	_recreate_internals();
+	emit_signal(SNAME("changed"));
+}
+
 int TileMap::get_quadrant_size() const {
 	return quadrant_size;
 }
 
-void TileMap::set_quadrant_size(int p_size) {
-	ERR_FAIL_COND_MSG(p_size < 1, "TileMapQuadrant size cannot be smaller than 1.");
+void TileMap::set_layers_count(int p_layers_count) {
+	ERR_FAIL_COND(p_layers_count < 0);
+	_clear_internals();
 
-	quadrant_size = p_size;
-	_recreate_quadrants();
+	layers.resize(p_layers_count);
+	_recreate_internals();
+	notify_property_list_changed();
+
+	if (selected_layer >= p_layers_count) {
+		selected_layer = -1;
+	}
+
+	emit_signal(SNAME("changed"));
+
+	update_configuration_warnings();
+}
+
+int TileMap::get_layers_count() const {
+	return layers.size();
+}
+
+void TileMap::set_layer_name(int p_layer, String p_name) {
+	ERR_FAIL_INDEX(p_layer, (int)layers.size());
+	layers[p_layer].name = p_name;
+	emit_signal(SNAME("changed"));
+}
+
+String TileMap::get_layer_name(int p_layer) const {
+	ERR_FAIL_INDEX_V(p_layer, (int)layers.size(), String());
+	return layers[p_layer].name;
+}
+
+void TileMap::set_layer_enabled(int p_layer, bool p_enabled) {
+	ERR_FAIL_INDEX(p_layer, (int)layers.size());
+	layers[p_layer].enabled = p_enabled;
+	_recreate_internals();
+	emit_signal(SNAME("changed"));
+
+	update_configuration_warnings();
+}
+
+bool TileMap::is_layer_enabled(int p_layer) const {
+	ERR_FAIL_INDEX_V(p_layer, (int)layers.size(), false);
+	return layers[p_layer].enabled;
+}
+
+void TileMap::set_layer_y_sort_enabled(int p_layer, bool p_y_sort_enabled) {
+	ERR_FAIL_INDEX(p_layer, (int)layers.size());
+	layers[p_layer].y_sort_enabled = p_y_sort_enabled;
+	_recreate_internals();
 	emit_signal(SNAME("changed"));
+
+	update_configuration_warnings();
+}
+
+bool TileMap::is_layer_y_sort_enabled(int p_layer) const {
+	ERR_FAIL_INDEX_V(p_layer, (int)layers.size(), false);
+	return layers[p_layer].y_sort_enabled;
+}
+
+void TileMap::set_layer_y_sort_origin(int p_layer, int p_y_sort_origin) {
+	ERR_FAIL_INDEX(p_layer, (int)layers.size());
+	layers[p_layer].y_sort_origin = p_y_sort_origin;
+	_recreate_internals();
+	emit_signal(SNAME("changed"));
+}
+
+int TileMap::get_layer_y_sort_origin(int p_layer) const {
+	ERR_FAIL_INDEX_V(p_layer, (int)layers.size(), false);
+	return layers[p_layer].y_sort_origin;
+}
+
+void TileMap::set_layer_z_index(int p_layer, int p_z_index) {
+	ERR_FAIL_INDEX(p_layer, (int)layers.size());
+	layers[p_layer].z_index = p_z_index;
+	_recreate_internals();
+	emit_signal(SNAME("changed"));
+
+	update_configuration_warnings();
+}
+
+int TileMap::get_layer_z_index(int p_layer) const {
+	ERR_FAIL_INDEX_V(p_layer, (int)layers.size(), false);
+	return layers[p_layer].z_index;
 }
 
 void TileMap::set_collision_visibility_mode(TileMap::VisibilityMode p_show_collision) {
-	show_collision = p_show_collision;
-	_recreate_quadrants();
+	collision_visibility_mode = p_show_collision;
+	_recreate_internals();
 	emit_signal(SNAME("changed"));
 }
 
 TileMap::VisibilityMode TileMap::get_collision_visibility_mode() {
-	return show_collision;
+	return collision_visibility_mode;
 }
 
 void TileMap::set_navigation_visibility_mode(TileMap::VisibilityMode p_show_navigation) {
-	show_navigation = p_show_navigation;
-	_recreate_quadrants();
+	navigation_visibility_mode = p_show_navigation;
+	_recreate_internals();
 	emit_signal(SNAME("changed"));
 }
 
 TileMap::VisibilityMode TileMap::get_navigation_visibility_mode() {
-	return show_navigation;
+	return navigation_visibility_mode;
 }
 
 void TileMap::set_y_sort_enabled(bool p_enable) {
 	Node2D::set_y_sort_enabled(p_enable);
-	_recreate_quadrants();
+	_recreate_internals();
 	emit_signal(SNAME("changed"));
 }
 
-void TileMap::update_dirty_quadrants() {
+Vector2i TileMap::_coords_to_quadrant_coords(int p_layer, const Vector2i &p_coords) const {
+	int quadrant_size = get_effective_quadrant_size(p_layer);
+
+	// Rounding down, instead of simply rounding towards zero (truncating)
+	return Vector2i(
+			p_coords.x > 0 ? p_coords.x / quadrant_size : (p_coords.x - (quadrant_size - 1)) / quadrant_size,
+			p_coords.y > 0 ? p_coords.y / quadrant_size : (p_coords.y - (quadrant_size - 1)) / quadrant_size);
+}
+
+Map<Vector2i, TileMapQuadrant>::Element *TileMap::_create_quadrant(int p_layer, const Vector2i &p_qk) {
+	ERR_FAIL_INDEX_V(p_layer, (int)layers.size(), nullptr);
+
+	TileMapQuadrant q;
+	q.layer = p_layer;
+	q.coords = p_qk;
+
+	rect_cache_dirty = true;
+
+	// Create the debug canvas item.
+	RenderingServer *rs = RenderingServer::get_singleton();
+	q.debug_canvas_item = rs->canvas_item_create();
+	rs->canvas_item_set_z_index(q.debug_canvas_item, RS::CANVAS_ITEM_Z_MAX - 1);
+	rs->canvas_item_set_parent(q.debug_canvas_item, get_canvas_item());
+
+	// Call the create_quadrant method on plugins
+	if (tile_set.is_valid()) {
+		_rendering_create_quadrant(&q);
+		_physics_create_quadrant(&q);
+	}
+
+	return layers[p_layer].quadrant_map.insert(p_qk, q);
+}
+
+void TileMap::_make_quadrant_dirty(Map<Vector2i, TileMapQuadrant>::Element *Q) {
+	// Make the given quadrant dirty, then trigger an update later.
+	TileMapQuadrant &q = Q->get();
+	if (!q.dirty_list_element.in_list()) {
+		layers[q.layer].dirty_quadrant_list.add(&q.dirty_list_element);
+	}
+	_queue_update_dirty_quadrants();
+}
+
+void TileMap::_make_all_quadrants_dirty() {
+	// Make all quandrants dirty, then trigger an update later.
+	for (unsigned int layer = 0; layer < layers.size(); layer++) {
+		for (Map<Vector2i, TileMapQuadrant>::Element *E = layers[layer].quadrant_map.front(); E; E = E->next()) {
+			if (!E->value().dirty_list_element.in_list()) {
+				layers[layer].dirty_quadrant_list.add(&E->value().dirty_list_element);
+			}
+		}
+	}
+	_queue_update_dirty_quadrants();
+}
+
+void TileMap::_queue_update_dirty_quadrants() {
+	if (pending_update || !is_inside_tree()) {
+		return;
+	}
+	pending_update = true;
+	call_deferred(SNAME("_update_dirty_quadrants"));
+}
+
+void TileMap::_update_dirty_quadrants() {
 	if (!pending_update) {
 		return;
 	}
@@ -349,43 +499,130 @@ void TileMap::update_dirty_quadrants() {
 		return;
 	}
 
-	// Update the coords cache.
-	for (SelfList<TileMapQuadrant> *q = dirty_quadrant_list.first(); q; q = q->next()) {
-		q->self()->map_to_world.clear();
-		q->self()->world_to_map.clear();
-		for (Set<Vector2i>::Element *E = q->self()->cells.front(); E; E = E->next()) {
-			Vector2i pk = E->get();
-			Vector2i pk_world_coords = map_to_world(pk);
-			q->self()->map_to_world[pk] = pk_world_coords;
-			q->self()->world_to_map[pk_world_coords] = pk;
+	for (unsigned int layer = 0; layer < layers.size(); layer++) {
+		// Update the coords cache.
+		for (SelfList<TileMapQuadrant> *q = layers[layer].dirty_quadrant_list.first(); q; q = q->next()) {
+			q->self()->map_to_world.clear();
+			q->self()->world_to_map.clear();
+			for (Set<Vector2i>::Element *E = q->self()->cells.front(); E; E = E->next()) {
+				Vector2i pk = E->get();
+				Vector2i pk_world_coords = map_to_world(pk);
+				q->self()->map_to_world[pk] = pk_world_coords;
+				q->self()->world_to_map[pk_world_coords] = pk;
+			}
+		}
+
+		// Call the update_dirty_quadrant method on plugins.
+		_rendering_update_dirty_quadrants(layers[layer].dirty_quadrant_list);
+		_physics_update_dirty_quadrants(layers[layer].dirty_quadrant_list);
+		_navigation_update_dirty_quadrants(layers[layer].dirty_quadrant_list);
+		_scenes_update_dirty_quadrants(layers[layer].dirty_quadrant_list);
+
+		// Redraw the debug canvas_items.
+		RenderingServer *rs = RenderingServer::get_singleton();
+		for (SelfList<TileMapQuadrant> *q = layers[layer].dirty_quadrant_list.first(); q; q = q->next()) {
+			rs->canvas_item_clear(q->self()->debug_canvas_item);
+			Transform2D xform;
+			xform.set_origin(map_to_world(q->self()->coords * get_effective_quadrant_size(layer)));
+			rs->canvas_item_set_transform(q->self()->debug_canvas_item, xform);
+
+			_rendering_draw_quadrant_debug(q->self());
+			_physics_draw_quadrant_debug(q->self());
+			_navigation_draw_quadrant_debug(q->self());
+			_scenes_draw_quadrant_debug(q->self());
 		}
-	}
 
-	// Call the update_dirty_quadrant method on plugins.
-	for (int i = 0; i < tile_set->get_tile_set_atlas_plugins().size(); i++) {
-		tile_set->get_tile_set_atlas_plugins()[i]->update_dirty_quadrants(this, dirty_quadrant_list);
+		// Clear the list
+		while (layers[layer].dirty_quadrant_list.first()) {
+			layers[layer].dirty_quadrant_list.remove(layers[layer].dirty_quadrant_list.first());
+		}
 	}
 
-	// Redraw the debug canvas_items.
-	RenderingServer *rs = RenderingServer::get_singleton();
-	for (SelfList<TileMapQuadrant> *q = dirty_quadrant_list.first(); q; q = q->next()) {
-		rs->canvas_item_clear(q->self()->debug_canvas_item);
-		Transform2D xform;
-		xform.set_origin(map_to_world(q->self()->coords * get_effective_quadrant_size()));
-		rs->canvas_item_set_transform(q->self()->debug_canvas_item, xform);
-		for (int i = 0; i < tile_set->get_tile_set_atlas_plugins().size(); i++) {
-			tile_set->get_tile_set_atlas_plugins()[i]->draw_quadrant_debug(this, q->self());
+	pending_update = false;
+
+	_recompute_rect_cache();
+}
+
+void TileMap::_recreate_internals() {
+	// Clear all internals.
+	_clear_internals();
+
+	for (unsigned int layer = 0; layer < layers.size(); layer++) {
+		if (!layers[layer].enabled) {
+			continue;
+		}
+
+		// Upadate the layer internals.
+		_rendering_update_layer(layer);
+
+		// Recreate the quadrants.
+		const Map<Vector2i, TileMapCell> &tile_map = layers[layer].tile_map;
+		for (Map<Vector2i, TileMapCell>::Element *E = tile_map.front(); E; E = E->next()) {
+			Vector2i qk = _coords_to_quadrant_coords(layer, Vector2i(E->key().x, E->key().y));
+
+			Map<Vector2i, TileMapQuadrant>::Element *Q = layers[layer].quadrant_map.find(qk);
+			if (!Q) {
+				Q = _create_quadrant(layer, qk);
+				layers[layer].dirty_quadrant_list.add(&Q->get().dirty_list_element);
+			}
+
+			Vector2i pk = E->key();
+			Q->get().cells.insert(pk);
+
+			_make_quadrant_dirty(Q);
 		}
 	}
 
-	// Clear the list
-	while (dirty_quadrant_list.first()) {
-		dirty_quadrant_list.remove(dirty_quadrant_list.first());
+	_update_dirty_quadrants();
+}
+
+void TileMap::_erase_quadrant(Map<Vector2i, TileMapQuadrant>::Element *Q) {
+	// Remove a quadrant.
+	TileMapQuadrant *q = &(Q->get());
+
+	// Call the cleanup_quadrant method on plugins.
+	if (tile_set.is_valid()) {
+		_rendering_cleanup_quadrant(q);
+		_physics_cleanup_quadrant(q);
+		_navigation_cleanup_quadrant(q);
+		_scenes_cleanup_quadrant(q);
 	}
 
-	pending_update = false;
+	// Remove the quadrant from the dirty_list if it is there.
+	if (q->dirty_list_element.in_list()) {
+		layers[q->layer].dirty_quadrant_list.remove(&(q->dirty_list_element));
+	}
 
-	_recompute_rect_cache();
+	// Free the debug canvas item.
+	RenderingServer *rs = RenderingServer::get_singleton();
+	rs->free(q->debug_canvas_item);
+
+	layers[q->layer].quadrant_map.erase(Q);
+	rect_cache_dirty = true;
+}
+
+void TileMap::_clear_layer_internals(int p_layer) {
+	ERR_FAIL_INDEX(p_layer, (int)layers.size());
+
+	// Clear quadrants.
+	while (layers[p_layer].quadrant_map.size()) {
+		_erase_quadrant(layers[p_layer].quadrant_map.front());
+	}
+
+	// Clear the layers internals.
+	_rendering_cleanup_layer(p_layer);
+
+	// Clear the dirty quadrants list.
+	while (layers[p_layer].dirty_quadrant_list.first()) {
+		layers[p_layer].dirty_quadrant_list.remove(layers[p_layer].dirty_quadrant_list.first());
+	}
+}
+
+void TileMap::_clear_internals() {
+	// Clear quadrants.
+	for (unsigned int layer = 0; layer < layers.size(); layer++) {
+		_clear_layer_internals(layer);
+	}
 }
 
 void TileMap::_recompute_rect_cache() {
@@ -397,16 +634,18 @@ void TileMap::_recompute_rect_cache() {
 	}
 
 	Rect2 r_total;
-	for (Map<Vector2i, TileMapQuadrant>::Element *E = quadrant_map.front(); E; E = E->next()) {
-		Rect2 r;
-		r.position = map_to_world(E->key() * get_effective_quadrant_size());
-		r.expand_to(map_to_world((E->key() + Vector2i(1, 0)) * get_effective_quadrant_size()));
-		r.expand_to(map_to_world((E->key() + Vector2i(1, 1)) * get_effective_quadrant_size()));
-		r.expand_to(map_to_world((E->key() + Vector2i(0, 1)) * get_effective_quadrant_size()));
-		if (E == quadrant_map.front()) {
-			r_total = r;
-		} else {
-			r_total = r_total.merge(r);
+	for (unsigned int layer = 0; layer < layers.size(); layer++) {
+		for (Map<Vector2i, TileMapQuadrant>::Element *E = layers[layer].quadrant_map.front(); E; E = E->next()) {
+			Rect2 r;
+			r.position = map_to_world(E->key() * get_effective_quadrant_size(layer));
+			r.expand_to(map_to_world((E->key() + Vector2i(1, 0)) * get_effective_quadrant_size(layer)));
+			r.expand_to(map_to_world((E->key() + Vector2i(1, 1)) * get_effective_quadrant_size(layer)));
+			r.expand_to(map_to_world((E->key() + Vector2i(0, 1)) * get_effective_quadrant_size(layer)));
+			if (E == layers[layer].quadrant_map.front()) {
+				r_total = r;
+			} else {
+				r_total = r_total.merge(r);
+			}
 		}
 	}
 
@@ -418,94 +657,884 @@ void TileMap::_recompute_rect_cache() {
 #endif
 }
 
-Map<Vector2i, TileMapQuadrant>::Element *TileMap::_create_quadrant(const Vector2i &p_qk) {
-	TileMapQuadrant q;
-	q.coords = p_qk;
+/////////////////////////////// Rendering //////////////////////////////////////
 
-	rect_cache_dirty = true;
+void TileMap::_rendering_notification(int p_what) {
+	switch (p_what) {
+		case CanvasItem::NOTIFICATION_VISIBILITY_CHANGED: {
+			bool visible = is_visible_in_tree();
+			for (int layer = 0; layer < (int)layers.size(); layer++) {
+				for (Map<Vector2i, TileMapQuadrant>::Element *E_quadrant = layers[layer].quadrant_map.front(); E_quadrant; E_quadrant = E_quadrant->next()) {
+					TileMapQuadrant &q = E_quadrant->get();
+
+					// Update occluders transform.
+					for (Map<Vector2i, Vector2i, TileMapQuadrant::CoordsWorldComparator>::Element *E_cell = q.world_to_map.front(); E_cell; E_cell = E_cell->next()) {
+						Transform2D xform;
+						xform.set_origin(E_cell->key());
+						for (const RID &occluder : q.occluders) {
+							RS::get_singleton()->canvas_light_occluder_set_enabled(occluder, visible);
+						}
+					}
+				}
+			}
+		} break;
+		case CanvasItem::NOTIFICATION_TRANSFORM_CHANGED: {
+			if (!is_inside_tree()) {
+				return;
+			}
+			for (int layer = 0; layer < (int)layers.size(); layer++) {
+				for (Map<Vector2i, TileMapQuadrant>::Element *E_quadrant = layers[layer].quadrant_map.front(); E_quadrant; E_quadrant = E_quadrant->next()) {
+					TileMapQuadrant &q = E_quadrant->get();
+
+					// Update occluders transform.
+					for (Map<Vector2i, Vector2i, TileMapQuadrant::CoordsWorldComparator>::Element *E_cell = q.world_to_map.front(); E_cell; E_cell = E_cell->next()) {
+						Transform2D xform;
+						xform.set_origin(E_cell->key());
+						for (const RID &occluder : q.occluders) {
+							RS::get_singleton()->canvas_light_occluder_set_transform(occluder, get_global_transform() * xform);
+						}
+					}
+				}
+			}
+		} break;
+		case CanvasItem::NOTIFICATION_DRAW: {
+			if (tile_set.is_valid()) {
+				RenderingServer::get_singleton()->canvas_item_set_sort_children_by_y(get_canvas_item(), is_y_sort_enabled());
+			}
+		} break;
+	}
+}
+
+void TileMap::_rendering_update_layer(int p_layer) {
+	ERR_FAIL_INDEX(p_layer, (int)layers.size());
 
-	// Create the debug canvas item.
 	RenderingServer *rs = RenderingServer::get_singleton();
-	q.debug_canvas_item = rs->canvas_item_create();
-	rs->canvas_item_set_z_index(q.debug_canvas_item, RS::CANVAS_ITEM_Z_MAX - 1);
-	rs->canvas_item_set_parent(q.debug_canvas_item, get_canvas_item());
+	if (!layers[p_layer].canvas_item.is_valid()) {
+		RID ci = rs->canvas_item_create();
+		rs->canvas_item_set_parent(ci, get_canvas_item());
 
-	// Call the create_quadrant method on plugins
-	if (tile_set.is_valid()) {
-		for (int i = 0; i < tile_set->get_tile_set_atlas_plugins().size(); i++) {
-			tile_set->get_tile_set_atlas_plugins()[i]->create_quadrant(this, &q);
-		}
+		/*Transform2D xform;
+		xform.set_origin(Vector2(0, p_layer));
+		rs->canvas_item_set_transform(ci, xform);*/
+		rs->canvas_item_set_draw_index(ci, p_layer);
+
+		layers[p_layer].canvas_item = ci;
 	}
+	RID &ci = layers[p_layer].canvas_item;
+	rs->canvas_item_set_sort_children_by_y(ci, layers[p_layer].y_sort_enabled);
+	rs->canvas_item_set_use_parent_material(ci, get_use_parent_material() || get_material().is_valid());
+	rs->canvas_item_set_z_index(ci, layers[p_layer].z_index);
+	rs->canvas_item_set_default_texture_filter(ci, RS::CanvasItemTextureFilter(get_texture_filter()));
+	rs->canvas_item_set_default_texture_repeat(ci, RS::CanvasItemTextureRepeat(get_texture_repeat()));
+	rs->canvas_item_set_light_mask(ci, get_light_mask());
+}
 
-	return quadrant_map.insert(p_qk, q);
+void TileMap::_rendering_cleanup_layer(int p_layer) {
+	ERR_FAIL_INDEX(p_layer, (int)layers.size());
+
+	RenderingServer *rs = RenderingServer::get_singleton();
+	if (!layers[p_layer].canvas_item.is_valid()) {
+		rs->free(layers[p_layer].canvas_item);
+	}
 }
 
-void TileMap::_erase_quadrant(Map<Vector2i, TileMapQuadrant>::Element *Q) {
-	// Remove a quadrant.
-	TileMapQuadrant *q = &(Q->get());
+void TileMap::_rendering_update_dirty_quadrants(SelfList<TileMapQuadrant>::List &r_dirty_quadrant_list) {
+	ERR_FAIL_COND(!is_inside_tree());
+	ERR_FAIL_COND(!tile_set.is_valid());
 
-	// Call the cleanup_quadrant method on plugins.
-	if (tile_set.is_valid()) {
-		for (int i = 0; i < tile_set->get_tile_set_atlas_plugins().size(); i++) {
-			tile_set->get_tile_set_atlas_plugins()[i]->cleanup_quadrant(this, q);
+	bool visible = is_visible_in_tree();
+
+	SelfList<TileMapQuadrant> *q_list_element = r_dirty_quadrant_list.first();
+	while (q_list_element) {
+		TileMapQuadrant &q = *q_list_element->self();
+
+		RenderingServer *rs = RenderingServer::get_singleton();
+
+		// Free the canvas items.
+		for (const RID &ci : q.canvas_items) {
+			rs->free(ci);
+		}
+		q.canvas_items.clear();
+
+		// Free the occluders.
+		for (const RID &occluder : q.occluders) {
+			rs->free(occluder);
 		}
+		q.occluders.clear();
+
+		// Those allow to group cell per material or z-index.
+		Ref<ShaderMaterial> prev_material;
+		int prev_z_index = 0;
+		RID prev_canvas_item;
+
+		// Iterate over the cells of the quadrant.
+		for (Map<Vector2i, Vector2i, TileMapQuadrant::CoordsWorldComparator>::Element *E_cell = q.world_to_map.front(); E_cell; E_cell = E_cell->next()) {
+			TileMapCell c = get_cell(q.layer, E_cell->value(), true);
+
+			TileSetSource *source;
+			if (tile_set->has_source(c.source_id)) {
+				source = *tile_set->get_source(c.source_id);
+
+				if (!source->has_tile(c.get_atlas_coords()) || !source->has_alternative_tile(c.get_atlas_coords(), c.alternative_tile)) {
+					continue;
+				}
+
+				TileSetAtlasSource *atlas_source = Object::cast_to<TileSetAtlasSource>(source);
+				if (atlas_source) {
+					// Get the tile data.
+					TileData *tile_data = Object::cast_to<TileData>(atlas_source->get_tile_data(c.get_atlas_coords(), c.alternative_tile));
+					Ref<ShaderMaterial> mat = tile_data->tile_get_material();
+					int z_index = layers[q.layer].z_index + tile_data->get_z_index();
+
+					// Quandrant pos.
+					Vector2 position = map_to_world(q.coords * get_effective_quadrant_size(q.layer));
+					if (is_y_sort_enabled() && layers[q.layer].y_sort_enabled) {
+						// When Y-sorting, the quandrant size is sure to be 1, we can thus offset the CanvasItem.
+						position.y += layers[q.layer].y_sort_origin + tile_data->get_y_sort_origin();
+					}
+
+					// --- CanvasItems ---
+					// Create two canvas items, for rendering and debug.
+					RID canvas_item;
+
+					// Check if the material or the z_index changed.
+					if (prev_canvas_item == RID() || prev_material != mat || prev_z_index != z_index) {
+						// If so, create a new CanvasItem.
+						canvas_item = rs->canvas_item_create();
+						if (mat.is_valid()) {
+							rs->canvas_item_set_material(canvas_item, mat->get_rid());
+						}
+						rs->canvas_item_set_parent(canvas_item, layers[q.layer].canvas_item);
+						rs->canvas_item_set_use_parent_material(canvas_item, get_use_parent_material() || get_material().is_valid());
+
+						Transform2D xform;
+						xform.set_origin(position);
+						rs->canvas_item_set_transform(canvas_item, xform);
+
+						rs->canvas_item_set_light_mask(canvas_item, get_light_mask());
+						rs->canvas_item_set_z_index(canvas_item, z_index);
+
+						rs->canvas_item_set_default_texture_filter(canvas_item, RS::CanvasItemTextureFilter(get_texture_filter()));
+						rs->canvas_item_set_default_texture_repeat(canvas_item, RS::CanvasItemTextureRepeat(get_texture_repeat()));
+
+						q.canvas_items.push_back(canvas_item);
+
+						prev_canvas_item = canvas_item;
+						prev_material = mat;
+						prev_z_index = z_index;
+
+					} else {
+						// Keep the same canvas_item to draw on.
+						canvas_item = prev_canvas_item;
+					}
+
+					// Drawing the tile in the canvas item.
+					Color modulate = get_self_modulate();
+					if (selected_layer >= 0) {
+						if (q.layer < selected_layer) {
+							modulate = modulate.darkened(0.5);
+						} else if (q.layer > selected_layer) {
+							modulate = modulate.darkened(0.5);
+							modulate.a *= 0.3;
+						}
+					}
+					draw_tile(canvas_item, E_cell->key() - position, tile_set, c.source_id, c.get_atlas_coords(), c.alternative_tile, modulate);
+
+					// --- Occluders ---
+					for (int i = 0; i < tile_set->get_occlusion_layers_count(); i++) {
+						Transform2D xform;
+						xform.set_origin(E_cell->key());
+						if (tile_data->get_occluder(i).is_valid()) {
+							RID occluder_id = rs->canvas_light_occluder_create();
+							rs->canvas_light_occluder_set_enabled(occluder_id, visible);
+							rs->canvas_light_occluder_set_transform(occluder_id, get_global_transform() * xform);
+							rs->canvas_light_occluder_set_polygon(occluder_id, tile_data->get_occluder(i)->get_rid());
+							rs->canvas_light_occluder_attach_to_canvas(occluder_id, get_canvas());
+							rs->canvas_light_occluder_set_light_mask(occluder_id, tile_set->get_occlusion_layer_light_mask(i));
+							q.occluders.push_back(occluder_id);
+						}
+					}
+				}
+			}
+		}
+
+		_rendering_quadrant_order_dirty = true;
+		q_list_element = q_list_element->next();
 	}
 
-	// Remove the quadrant from the dirty_list if it is there.
-	if (q->dirty_list_element.in_list()) {
-		dirty_quadrant_list.remove(&(q->dirty_list_element));
+	// Reset the drawing indices
+	if (_rendering_quadrant_order_dirty) {
+		int index = -(int64_t)0x80000000; //always must be drawn below children.
+
+		for (int layer = 0; layer < (int)layers.size(); layer++) {
+			// Sort the quadrants coords per world coordinates
+			Map<Vector2i, Vector2i, TileMapQuadrant::CoordsWorldComparator> world_to_map;
+			for (Map<Vector2i, TileMapQuadrant>::Element *E = layers[layer].quadrant_map.front(); E; E = E->next()) {
+				world_to_map[map_to_world(E->key())] = E->key();
+			}
+
+			// Sort the quadrants
+			for (Map<Vector2i, Vector2i, TileMapQuadrant::CoordsWorldComparator>::Element *E = world_to_map.front(); E; E = E->next()) {
+				TileMapQuadrant &q = layers[layer].quadrant_map[E->value()];
+				for (const RID &ci : q.canvas_items) {
+					RS::get_singleton()->canvas_item_set_draw_index(ci, index++);
+				}
+			}
+		}
+		_rendering_quadrant_order_dirty = false;
 	}
+}
 
-	// Free the debug canvas item.
+void TileMap::_rendering_create_quadrant(TileMapQuadrant *p_quadrant) {
+	ERR_FAIL_COND(!tile_set.is_valid());
+
+	_rendering_quadrant_order_dirty = true;
+}
+
+void TileMap::_rendering_cleanup_quadrant(TileMapQuadrant *p_quadrant) {
+	// Free the canvas items.
+	for (const RID &ci : p_quadrant->canvas_items) {
+		RenderingServer::get_singleton()->free(ci);
+	}
+	p_quadrant->canvas_items.clear();
+
+	// Free the occluders.
+	for (const RID &occluder : p_quadrant->occluders) {
+		RenderingServer::get_singleton()->free(occluder);
+	}
+	p_quadrant->occluders.clear();
+}
+
+void TileMap::_rendering_draw_quadrant_debug(TileMapQuadrant *p_quadrant) {
+	ERR_FAIL_COND(!tile_set.is_valid());
+
+	if (!Engine::get_singleton()->is_editor_hint()) {
+		return;
+	}
+
+	// Draw a placeholder for scenes needing one.
 	RenderingServer *rs = RenderingServer::get_singleton();
-	rs->free(q->debug_canvas_item);
+	Vector2 quadrant_pos = map_to_world(p_quadrant->coords * get_effective_quadrant_size(p_quadrant->layer));
+	for (Set<Vector2i>::Element *E_cell = p_quadrant->cells.front(); E_cell; E_cell = E_cell->next()) {
+		const TileMapCell &c = get_cell(p_quadrant->layer, E_cell->get(), true);
 
-	quadrant_map.erase(Q);
-	rect_cache_dirty = true;
+		TileSetSource *source;
+		if (tile_set->has_source(c.source_id)) {
+			source = *tile_set->get_source(c.source_id);
+
+			if (!source->has_tile(c.get_atlas_coords()) || !source->has_alternative_tile(c.get_atlas_coords(), c.alternative_tile)) {
+				continue;
+			}
+
+			TileSetAtlasSource *atlas_source = Object::cast_to<TileSetAtlasSource>(source);
+			if (atlas_source) {
+				Vector2i grid_size = atlas_source->get_atlas_grid_size();
+				if (!atlas_source->get_texture().is_valid() || c.get_atlas_coords().x >= grid_size.x || c.get_atlas_coords().y >= grid_size.y) {
+					// Generate a random color from the hashed values of the tiles.
+					Array to_hash;
+					to_hash.push_back(c.source_id);
+					to_hash.push_back(c.get_atlas_coords());
+					to_hash.push_back(c.alternative_tile);
+					uint32_t hash = RandomPCG(to_hash.hash()).rand();
+
+					Color color;
+					color = color.from_hsv(
+							(float)((hash >> 24) & 0xFF) / 256.0,
+							Math::lerp(0.5, 1.0, (float)((hash >> 16) & 0xFF) / 256.0),
+							Math::lerp(0.5, 1.0, (float)((hash >> 8) & 0xFF) / 256.0),
+							0.8);
+
+					// Draw a placeholder tile.
+					Transform2D xform;
+					xform.set_origin(map_to_world(E_cell->get()) - quadrant_pos);
+					rs->canvas_item_add_set_transform(p_quadrant->debug_canvas_item, xform);
+					rs->canvas_item_add_circle(p_quadrant->debug_canvas_item, Vector2(), MIN(tile_set->get_tile_size().x, tile_set->get_tile_size().y) / 4.0, color);
+				}
+			}
+		}
+	}
 }
 
-void TileMap::_make_all_quadrants_dirty(bool p_update) {
-	// Make all quandrants dirty, then trigger an update later.
-	for (Map<Vector2i, TileMapQuadrant>::Element *E = quadrant_map.front(); E; E = E->next()) {
-		if (!E->value().dirty_list_element.in_list()) {
-			dirty_quadrant_list.add(&E->value().dirty_list_element);
+void TileMap::draw_tile(RID p_canvas_item, Vector2i p_position, const Ref<TileSet> p_tile_set, int p_atlas_source_id, Vector2i p_atlas_coords, int p_alternative_tile, Color p_modulation) {
+	ERR_FAIL_COND(!p_tile_set.is_valid());
+	ERR_FAIL_COND(!p_tile_set->has_source(p_atlas_source_id));
+	ERR_FAIL_COND(!p_tile_set->get_source(p_atlas_source_id)->has_tile(p_atlas_coords));
+	ERR_FAIL_COND(!p_tile_set->get_source(p_atlas_source_id)->has_alternative_tile(p_atlas_coords, p_alternative_tile));
+
+	TileSetSource *source = *p_tile_set->get_source(p_atlas_source_id);
+	TileSetAtlasSource *atlas_source = Object::cast_to<TileSetAtlasSource>(source);
+	if (atlas_source) {
+		// Get the texture.
+		Ref<Texture2D> tex = atlas_source->get_texture();
+		if (!tex.is_valid()) {
+			return;
+		}
+
+		// Check if we are in the texture, return otherwise.
+		Vector2i grid_size = atlas_source->get_atlas_grid_size();
+		if (p_atlas_coords.x >= grid_size.x || p_atlas_coords.y >= grid_size.y) {
+			return;
+		}
+
+		// Get tile data.
+		TileData *tile_data = Object::cast_to<TileData>(atlas_source->get_tile_data(p_atlas_coords, p_alternative_tile));
+
+		// Compute the offset
+		Rect2i source_rect = atlas_source->get_tile_texture_region(p_atlas_coords);
+		Vector2i tile_offset = atlas_source->get_tile_effective_texture_offset(p_atlas_coords, p_alternative_tile);
+
+		// Compute the destination rectangle in the CanvasItem.
+		Rect2 dest_rect;
+		dest_rect.size = source_rect.size;
+		dest_rect.size.x += FP_ADJUST;
+		dest_rect.size.y += FP_ADJUST;
+
+		bool transpose = tile_data->get_transpose();
+		if (transpose) {
+			dest_rect.position = (p_position - Vector2(dest_rect.size.y, dest_rect.size.x) / 2 - tile_offset);
+		} else {
+			dest_rect.position = (p_position - dest_rect.size / 2 - tile_offset);
+		}
+
+		if (tile_data->get_flip_h()) {
+			dest_rect.size.x = -dest_rect.size.x;
+		}
+
+		if (tile_data->get_flip_v()) {
+			dest_rect.size.y = -dest_rect.size.y;
 		}
+
+		// Get the tile modulation.
+		Color modulate = tile_data->get_modulate();
+		modulate = Color(modulate.r * p_modulation.r, modulate.g * p_modulation.g, modulate.b * p_modulation.b, modulate.a * p_modulation.a);
+
+		// Draw the tile.
+		tex->draw_rect_region(p_canvas_item, dest_rect, source_rect, modulate, transpose, p_tile_set->is_uv_clipping());
 	}
+}
 
-	if (pending_update) {
+/////////////////////////////// Physics //////////////////////////////////////
+
+void TileMap::_physics_notification(int p_what) {
+	switch (p_what) {
+		case CanvasItem::NOTIFICATION_TRANSFORM_CHANGED: {
+			// Update the bodies transforms.
+			if (is_inside_tree()) {
+				for (int layer = 0; layer < (int)layers.size(); layer++) {
+					Transform2D global_transform = get_global_transform();
+
+					for (Map<Vector2i, TileMapQuadrant>::Element *E = layers[layer].quadrant_map.front(); E; E = E->next()) {
+						TileMapQuadrant &q = E->get();
+
+						Transform2D xform;
+						xform.set_origin(map_to_world(E->key() * get_effective_quadrant_size(layer)));
+						xform = global_transform * xform;
+
+						for (int body_index = 0; body_index < q.bodies.size(); body_index++) {
+							PhysicsServer2D::get_singleton()->body_set_state(q.bodies[body_index], PhysicsServer2D::BODY_STATE_TRANSFORM, xform);
+						}
+					}
+				}
+			}
+		} break;
+	}
+}
+
+void TileMap::_physics_update_dirty_quadrants(SelfList<TileMapQuadrant>::List &r_dirty_quadrant_list) {
+	ERR_FAIL_COND(!is_inside_tree());
+	ERR_FAIL_COND(!tile_set.is_valid());
+
+	Transform2D global_transform = get_global_transform();
+	PhysicsServer2D *ps = PhysicsServer2D::get_singleton();
+
+	SelfList<TileMapQuadrant> *q_list_element = r_dirty_quadrant_list.first();
+	while (q_list_element) {
+		TileMapQuadrant &q = *q_list_element->self();
+
+		Vector2 quadrant_pos = map_to_world(q.coords * get_effective_quadrant_size(q.layer));
+
+		// Clear shapes.
+		for (int body_index = 0; body_index < q.bodies.size(); body_index++) {
+			ps->body_clear_shapes(q.bodies[body_index]);
+
+			// Position the bodies.
+			Transform2D xform;
+			xform.set_origin(quadrant_pos);
+			xform = global_transform * xform;
+			ps->body_set_state(q.bodies[body_index], PhysicsServer2D::BODY_STATE_TRANSFORM, xform);
+		}
+
+		for (Set<Vector2i>::Element *E_cell = q.cells.front(); E_cell; E_cell = E_cell->next()) {
+			TileMapCell c = get_cell(q.layer, E_cell->get(), true);
+
+			TileSetSource *source;
+			if (tile_set->has_source(c.source_id)) {
+				source = *tile_set->get_source(c.source_id);
+
+				if (!source->has_tile(c.get_atlas_coords()) || !source->has_alternative_tile(c.get_atlas_coords(), c.alternative_tile)) {
+					continue;
+				}
+
+				TileSetAtlasSource *atlas_source = Object::cast_to<TileSetAtlasSource>(source);
+				if (atlas_source) {
+					TileData *tile_data = Object::cast_to<TileData>(atlas_source->get_tile_data(c.get_atlas_coords(), c.alternative_tile));
+
+					for (int body_index = 0; body_index < q.bodies.size(); body_index++) {
+						// Add the shapes again.
+						for (int polygon_index = 0; polygon_index < tile_data->get_collision_polygons_count(body_index); polygon_index++) {
+							bool one_way_collision = tile_data->is_collision_polygon_one_way(body_index, polygon_index);
+							float one_way_collision_margin = tile_data->get_collision_polygon_one_way_margin(body_index, polygon_index);
+
+							int shapes_count = tile_data->get_collision_polygon_shapes_count(body_index, polygon_index);
+							for (int shape_index = 0; shape_index < shapes_count; shape_index++) {
+								Transform2D xform = Transform2D();
+								xform.set_origin(map_to_world(E_cell->get()) - quadrant_pos);
+
+								// Add decomposed convex shapes.
+								Ref<ConvexPolygonShape2D> shape = tile_data->get_collision_polygon_shape(body_index, polygon_index, shape_index);
+								ps->body_add_shape(q.bodies[body_index], shape->get_rid(), xform);
+								ps->body_set_shape_metadata(q.bodies[body_index], shape_index, E_cell->get());
+								ps->body_set_shape_as_one_way_collision(q.bodies[body_index], shape_index, one_way_collision, one_way_collision_margin);
+							}
+						}
+					}
+				}
+			}
+		}
+
+		q_list_element = q_list_element->next();
+	}
+}
+
+void TileMap::_physics_create_quadrant(TileMapQuadrant *p_quadrant) {
+	ERR_FAIL_COND(!tile_set.is_valid());
+
+	//Get the TileMap's gobla transform.
+	Transform2D global_transform;
+	if (is_inside_tree()) {
+		global_transform = get_global_transform();
+	}
+
+	// Clear all bodies.
+	p_quadrant->bodies.clear();
+
+	// Create the body and set its parameters.
+	for (int layer = 0; layer < tile_set->get_physics_layers_count(); layer++) {
+		RID body = PhysicsServer2D::get_singleton()->body_create();
+		PhysicsServer2D::get_singleton()->body_set_mode(body, PhysicsServer2D::BODY_MODE_STATIC);
+
+		PhysicsServer2D::get_singleton()->body_attach_object_instance_id(body, get_instance_id());
+		PhysicsServer2D::get_singleton()->body_set_collision_layer(body, tile_set->get_physics_layer_collision_layer(layer));
+		PhysicsServer2D::get_singleton()->body_set_collision_mask(body, tile_set->get_physics_layer_collision_mask(layer));
+
+		Ref<PhysicsMaterial> physics_material = tile_set->get_physics_layer_physics_material(layer);
+		if (!physics_material.is_valid()) {
+			PhysicsServer2D::get_singleton()->body_set_param(body, PhysicsServer2D::BODY_PARAM_BOUNCE, 0);
+			PhysicsServer2D::get_singleton()->body_set_param(body, PhysicsServer2D::BODY_PARAM_FRICTION, 1);
+		} else {
+			PhysicsServer2D::get_singleton()->body_set_param(body, PhysicsServer2D::BODY_PARAM_BOUNCE, physics_material->computed_bounce());
+			PhysicsServer2D::get_singleton()->body_set_param(body, PhysicsServer2D::BODY_PARAM_FRICTION, physics_material->computed_friction());
+		}
+
+		if (is_inside_tree()) {
+			RID space = get_world_2d()->get_space();
+			PhysicsServer2D::get_singleton()->body_set_space(body, space);
+
+			Transform2D xform;
+			xform.set_origin(map_to_world(p_quadrant->coords * get_effective_quadrant_size(layer)));
+			xform = global_transform * xform;
+			PhysicsServer2D::get_singleton()->body_set_state(body, PhysicsServer2D::BODY_STATE_TRANSFORM, xform);
+		}
+
+		p_quadrant->bodies.push_back(body);
+	}
+}
+
+void TileMap::_physics_cleanup_quadrant(TileMapQuadrant *p_quadrant) {
+	// Remove a quadrant.
+	for (int body_index = 0; body_index < p_quadrant->bodies.size(); body_index++) {
+		PhysicsServer2D::get_singleton()->free(p_quadrant->bodies[body_index]);
+	}
+	p_quadrant->bodies.clear();
+}
+
+void TileMap::_physics_draw_quadrant_debug(TileMapQuadrant *p_quadrant) {
+	// Draw the debug collision shapes.
+	ERR_FAIL_COND(!tile_set.is_valid());
+
+	if (!get_tree()) {
 		return;
 	}
-	pending_update = true;
-	if (!is_inside_tree()) {
+
+	bool show_collision = false;
+	switch (collision_visibility_mode) {
+		case TileMap::VISIBILITY_MODE_DEFAULT:
+			show_collision = !Engine::get_singleton()->is_editor_hint() && (get_tree() && get_tree()->is_debugging_navigation_hint());
+			break;
+		case TileMap::VISIBILITY_MODE_FORCE_HIDE:
+			show_collision = false;
+			break;
+		case TileMap::VISIBILITY_MODE_FORCE_SHOW:
+			show_collision = true;
+			break;
+	}
+	if (!show_collision) {
 		return;
 	}
-	if (p_update) {
-		call_deferred(SNAME("update_dirty_quadrants"));
+
+	RenderingServer *rs = RenderingServer::get_singleton();
+
+	Vector2 quadrant_pos = map_to_world(p_quadrant->coords * get_effective_quadrant_size(p_quadrant->layer));
+
+	Color debug_collision_color = get_tree()->get_debug_collisions_color();
+	for (Set<Vector2i>::Element *E_cell = p_quadrant->cells.front(); E_cell; E_cell = E_cell->next()) {
+		TileMapCell c = get_cell(p_quadrant->layer, E_cell->get(), true);
+
+		Transform2D xform;
+		xform.set_origin(map_to_world(E_cell->get()) - quadrant_pos);
+		rs->canvas_item_add_set_transform(p_quadrant->debug_canvas_item, xform);
+
+		if (tile_set->has_source(c.source_id)) {
+			TileSetSource *source = *tile_set->get_source(c.source_id);
+
+			if (!source->has_tile(c.get_atlas_coords()) || !source->has_alternative_tile(c.get_atlas_coords(), c.alternative_tile)) {
+				continue;
+			}
+
+			TileSetAtlasSource *atlas_source = Object::cast_to<TileSetAtlasSource>(source);
+			if (atlas_source) {
+				TileData *tile_data = Object::cast_to<TileData>(atlas_source->get_tile_data(c.get_atlas_coords(), c.alternative_tile));
+
+				for (int body_index = 0; body_index < p_quadrant->bodies.size(); body_index++) {
+					for (int polygon_index = 0; polygon_index < tile_data->get_collision_polygons_count(body_index); polygon_index++) {
+						// Draw the debug polygon.
+						Vector<Vector2> polygon = tile_data->get_collision_polygon_points(body_index, polygon_index);
+						if (polygon.size() >= 3) {
+							Vector<Color> color;
+							color.push_back(debug_collision_color);
+							rs->canvas_item_add_polygon(p_quadrant->debug_canvas_item, polygon, color);
+						}
+					}
+				}
+			}
+		}
+		rs->canvas_item_add_set_transform(p_quadrant->debug_canvas_item, Transform2D());
+	}
+};
+
+/////////////////////////////// Navigation //////////////////////////////////////
+
+void TileMap::_navigation_notification(int p_what) {
+	switch (p_what) {
+		case CanvasItem::NOTIFICATION_TRANSFORM_CHANGED: {
+			if (is_inside_tree()) {
+				for (int layer = 0; layer < (int)layers.size(); layer++) {
+					Transform2D tilemap_xform = get_global_transform();
+					for (Map<Vector2i, TileMapQuadrant>::Element *E_quadrant = layers[layer].quadrant_map.front(); E_quadrant; E_quadrant = E_quadrant->next()) {
+						TileMapQuadrant &q = E_quadrant->get();
+						for (Map<Vector2i, Vector<RID>>::Element *E_region = q.navigation_regions.front(); E_region; E_region = E_region->next()) {
+							for (int layer_index = 0; layer_index < E_region->get().size(); layer_index++) {
+								RID region = E_region->get()[layer_index];
+								if (!region.is_valid()) {
+									continue;
+								}
+								Transform2D tile_transform;
+								tile_transform.set_origin(map_to_world(E_region->key()));
+								NavigationServer2D::get_singleton()->region_set_transform(region, tilemap_xform * tile_transform);
+							}
+						}
+					}
+				}
+			}
+		} break;
 	}
 }
 
-void TileMap::_make_quadrant_dirty(Map<Vector2i, TileMapQuadrant>::Element *Q, bool p_update) {
-	// Make the given quadrant dirty, then trigger an update later.
-	TileMapQuadrant &q = Q->get();
-	if (!q.dirty_list_element.in_list()) {
-		dirty_quadrant_list.add(&q.dirty_list_element);
+void TileMap::_navigation_update_dirty_quadrants(SelfList<TileMapQuadrant>::List &r_dirty_quadrant_list) {
+	ERR_FAIL_COND(!is_inside_tree());
+	ERR_FAIL_COND(!tile_set.is_valid());
+
+	// Get colors for debug.
+	SceneTree *st = SceneTree::get_singleton();
+	Color debug_navigation_color;
+	bool debug_navigation = st && st->is_debugging_navigation_hint();
+	if (debug_navigation) {
+		debug_navigation_color = st->get_debug_navigation_color();
+	}
+
+	Transform2D tilemap_xform = get_global_transform();
+	SelfList<TileMapQuadrant> *q_list_element = r_dirty_quadrant_list.first();
+	while (q_list_element) {
+		TileMapQuadrant &q = *q_list_element->self();
+
+		// Clear navigation shapes in the quadrant.
+		for (Map<Vector2i, Vector<RID>>::Element *E = q.navigation_regions.front(); E; E = E->next()) {
+			for (int i = 0; i < E->get().size(); i++) {
+				RID region = E->get()[i];
+				if (!region.is_valid()) {
+					continue;
+				}
+				NavigationServer2D::get_singleton()->region_set_map(region, RID());
+			}
+		}
+		q.navigation_regions.clear();
+
+		// Get the navigation polygons and create regions.
+		for (Set<Vector2i>::Element *E_cell = q.cells.front(); E_cell; E_cell = E_cell->next()) {
+			TileMapCell c = get_cell(q.layer, E_cell->get(), true);
+
+			TileSetSource *source;
+			if (tile_set->has_source(c.source_id)) {
+				source = *tile_set->get_source(c.source_id);
+
+				if (!source->has_tile(c.get_atlas_coords()) || !source->has_alternative_tile(c.get_atlas_coords(), c.alternative_tile)) {
+					continue;
+				}
+
+				TileSetAtlasSource *atlas_source = Object::cast_to<TileSetAtlasSource>(source);
+				if (atlas_source) {
+					TileData *tile_data = Object::cast_to<TileData>(atlas_source->get_tile_data(c.get_atlas_coords(), c.alternative_tile));
+					q.navigation_regions[E_cell->get()].resize(tile_set->get_navigation_layers_count());
+
+					for (int layer_index = 0; layer_index < tile_set->get_navigation_layers_count(); layer_index++) {
+						Ref<NavigationPolygon> navpoly;
+						navpoly = tile_data->get_navigation_polygon(layer_index);
+
+						if (navpoly.is_valid()) {
+							Transform2D tile_transform;
+							tile_transform.set_origin(map_to_world(E_cell->get()));
+
+							RID region = NavigationServer2D::get_singleton()->region_create();
+							NavigationServer2D::get_singleton()->region_set_map(region, get_world_2d()->get_navigation_map());
+							NavigationServer2D::get_singleton()->region_set_transform(region, tilemap_xform * tile_transform);
+							NavigationServer2D::get_singleton()->region_set_navpoly(region, navpoly);
+							q.navigation_regions[E_cell->get()].write[layer_index] = region;
+						}
+					}
+				}
+			}
+		}
+
+		q_list_element = q_list_element->next();
 	}
+}
 
-	if (pending_update) {
+void TileMap::_navigation_cleanup_quadrant(TileMapQuadrant *p_quadrant) {
+	// Clear navigation shapes in the quadrant.
+	for (Map<Vector2i, Vector<RID>>::Element *E = p_quadrant->navigation_regions.front(); E; E = E->next()) {
+		for (int i = 0; i < E->get().size(); i++) {
+			RID region = E->get()[i];
+			if (!region.is_valid()) {
+				continue;
+			}
+			NavigationServer2D::get_singleton()->free(region);
+		}
+	}
+	p_quadrant->navigation_regions.clear();
+}
+
+void TileMap::_navigation_draw_quadrant_debug(TileMapQuadrant *p_quadrant) {
+	// Draw the debug collision shapes.
+	ERR_FAIL_COND(!tile_set.is_valid());
+
+	if (!get_tree()) {
 		return;
 	}
-	pending_update = true;
-	if (!is_inside_tree()) {
+
+	bool show_navigation = false;
+	switch (navigation_visibility_mode) {
+		case TileMap::VISIBILITY_MODE_DEFAULT:
+			show_navigation = !Engine::get_singleton()->is_editor_hint() && (get_tree() && get_tree()->is_debugging_navigation_hint());
+			break;
+		case TileMap::VISIBILITY_MODE_FORCE_HIDE:
+			show_navigation = false;
+			break;
+		case TileMap::VISIBILITY_MODE_FORCE_SHOW:
+			show_navigation = true;
+			break;
+	}
+	if (!show_navigation) {
+		return;
+	}
+
+	RenderingServer *rs = RenderingServer::get_singleton();
+
+	Color color = get_tree()->get_debug_navigation_color();
+	RandomPCG rand;
+
+	Vector2 quadrant_pos = map_to_world(p_quadrant->coords * get_effective_quadrant_size(p_quadrant->layer));
+
+	for (Set<Vector2i>::Element *E_cell = p_quadrant->cells.front(); E_cell; E_cell = E_cell->next()) {
+		TileMapCell c = get_cell(p_quadrant->layer, E_cell->get(), true);
+
+		TileSetSource *source;
+		if (tile_set->has_source(c.source_id)) {
+			source = *tile_set->get_source(c.source_id);
+
+			if (!source->has_tile(c.get_atlas_coords()) || !source->has_alternative_tile(c.get_atlas_coords(), c.alternative_tile)) {
+				continue;
+			}
+
+			TileSetAtlasSource *atlas_source = Object::cast_to<TileSetAtlasSource>(source);
+			if (atlas_source) {
+				TileData *tile_data = Object::cast_to<TileData>(atlas_source->get_tile_data(c.get_atlas_coords(), c.alternative_tile));
+
+				Transform2D xform;
+				xform.set_origin(map_to_world(E_cell->get()) - quadrant_pos);
+				rs->canvas_item_add_set_transform(p_quadrant->debug_canvas_item, xform);
+
+				for (int layer_index = 0; layer_index < tile_set->get_navigation_layers_count(); layer_index++) {
+					Ref<NavigationPolygon> navpoly = tile_data->get_navigation_polygon(layer_index);
+					if (navpoly.is_valid()) {
+						PackedVector2Array navigation_polygon_vertices = navpoly->get_vertices();
+
+						for (int i = 0; i < navpoly->get_polygon_count(); i++) {
+							// An array of vertices for this polygon.
+							Vector<int> polygon = navpoly->get_polygon(i);
+							Vector<Vector2> vertices;
+							vertices.resize(polygon.size());
+							for (int j = 0; j < polygon.size(); j++) {
+								ERR_FAIL_INDEX(polygon[j], navigation_polygon_vertices.size());
+								vertices.write[j] = navigation_polygon_vertices[polygon[j]];
+							}
+
+							// Generate the polygon color, slightly randomly modified from the settings one.
+							Color random_variation_color;
+							random_variation_color.set_hsv(color.get_h() + rand.random(-1.0, 1.0) * 0.05, color.get_s(), color.get_v() + rand.random(-1.0, 1.0) * 0.1);
+							random_variation_color.a = color.a;
+							Vector<Color> colors;
+							colors.push_back(random_variation_color);
+
+							rs->canvas_item_add_polygon(p_quadrant->debug_canvas_item, vertices, colors);
+						}
+					}
+				}
+			}
+		}
+	}
+}
+
+/////////////////////////////// Scenes //////////////////////////////////////
+
+void TileMap::_scenes_update_dirty_quadrants(SelfList<TileMapQuadrant>::List &r_dirty_quadrant_list) {
+	ERR_FAIL_COND(!tile_set.is_valid());
+
+	SelfList<TileMapQuadrant> *q_list_element = r_dirty_quadrant_list.first();
+	while (q_list_element) {
+		TileMapQuadrant &q = *q_list_element->self();
+
+		// Clear the scenes.
+		for (Map<Vector2i, String>::Element *E = q.scenes.front(); E; E = E->next()) {
+			Node *node = get_node(E->get());
+			if (node) {
+				node->queue_delete();
+			}
+		}
+
+		q.scenes.clear();
+
+		// Recreate the scenes.
+		for (Set<Vector2i>::Element *E_cell = q.cells.front(); E_cell; E_cell = E_cell->next()) {
+			const TileMapCell &c = get_cell(q.layer, E_cell->get(), true);
+
+			TileSetSource *source;
+			if (tile_set->has_source(c.source_id)) {
+				source = *tile_set->get_source(c.source_id);
+
+				if (!source->has_tile(c.get_atlas_coords()) || !source->has_alternative_tile(c.get_atlas_coords(), c.alternative_tile)) {
+					continue;
+				}
+
+				TileSetScenesCollectionSource *scenes_collection_source = Object::cast_to<TileSetScenesCollectionSource>(source);
+				if (scenes_collection_source) {
+					Ref<PackedScene> packed_scene = scenes_collection_source->get_scene_tile_scene(c.alternative_tile);
+					if (packed_scene.is_valid()) {
+						Node *scene = packed_scene->instantiate();
+						add_child(scene);
+						Control *scene_as_control = Object::cast_to<Control>(scene);
+						Node2D *scene_as_node2d = Object::cast_to<Node2D>(scene);
+						if (scene_as_control) {
+							scene_as_control->set_position(map_to_world(E_cell->get()) + scene_as_control->get_position());
+						} else if (scene_as_node2d) {
+							Transform2D xform;
+							xform.set_origin(map_to_world(E_cell->get()));
+							scene_as_node2d->set_transform(xform * scene_as_node2d->get_transform());
+						}
+						q.scenes[E_cell->get()] = scene->get_name();
+					}
+				}
+			}
+		}
+
+		q_list_element = q_list_element->next();
+	}
+}
+
+void TileMap::_scenes_cleanup_quadrant(TileMapQuadrant *p_quadrant) {
+	// Clear the scenes.
+	for (Map<Vector2i, String>::Element *E = p_quadrant->scenes.front(); E; E = E->next()) {
+		Node *node = get_node(E->get());
+		if (node) {
+			node->queue_delete();
+		}
+	}
+
+	p_quadrant->scenes.clear();
+}
+
+void TileMap::_scenes_draw_quadrant_debug(TileMapQuadrant *p_quadrant) {
+	ERR_FAIL_COND(!tile_set.is_valid());
+
+	if (!Engine::get_singleton()->is_editor_hint()) {
 		return;
 	}
 
-	if (p_update) {
-		call_deferred(SNAME("update_dirty_quadrants"));
+	// Draw a placeholder for scenes needing one.
+	RenderingServer *rs = RenderingServer::get_singleton();
+	Vector2 quadrant_pos = map_to_world(p_quadrant->coords * get_effective_quadrant_size(p_quadrant->layer));
+	for (Set<Vector2i>::Element *E_cell = p_quadrant->cells.front(); E_cell; E_cell = E_cell->next()) {
+		const TileMapCell &c = get_cell(p_quadrant->layer, E_cell->get(), true);
+
+		TileSetSource *source;
+		if (tile_set->has_source(c.source_id)) {
+			source = *tile_set->get_source(c.source_id);
+
+			if (!source->has_tile(c.get_atlas_coords()) || !source->has_alternative_tile(c.get_atlas_coords(), c.alternative_tile)) {
+				continue;
+			}
+
+			TileSetScenesCollectionSource *scenes_collection_source = Object::cast_to<TileSetScenesCollectionSource>(source);
+			if (scenes_collection_source) {
+				if (!scenes_collection_source->get_scene_tile_scene(c.alternative_tile).is_valid() || scenes_collection_source->get_scene_tile_display_placeholder(c.alternative_tile)) {
+					// Generate a random color from the hashed values of the tiles.
+					Array to_hash;
+					to_hash.push_back(c.source_id);
+					to_hash.push_back(c.alternative_tile);
+					uint32_t hash = RandomPCG(to_hash.hash()).rand();
+
+					Color color;
+					color = color.from_hsv(
+							(float)((hash >> 24) & 0xFF) / 256.0,
+							Math::lerp(0.5, 1.0, (float)((hash >> 16) & 0xFF) / 256.0),
+							Math::lerp(0.5, 1.0, (float)((hash >> 8) & 0xFF) / 256.0),
+							0.8);
+
+					// Draw a placeholder tile.
+					Transform2D xform;
+					xform.set_origin(map_to_world(E_cell->get()) - quadrant_pos);
+					rs->canvas_item_add_set_transform(p_quadrant->debug_canvas_item, xform);
+					rs->canvas_item_add_circle(p_quadrant->debug_canvas_item, Vector2(), MIN(tile_set->get_tile_size().x, tile_set->get_tile_size().y) / 4.0, color);
+				}
+			}
+		}
 	}
 }
 
-void TileMap::set_cell(const Vector2i &p_coords, int p_source_id, const Vector2i p_atlas_coords, int p_alternative_tile) {
+void TileMap::set_cell(int p_layer, const Vector2i &p_coords, int p_source_id, const Vector2i p_atlas_coords, int p_alternative_tile) {
+	ERR_FAIL_INDEX(p_layer, (int)layers.size());
+
 	// Set the current cell tile (using integer position).
+	Map<Vector2i, TileMapCell> &tile_map = layers[p_layer].tile_map;
 	Vector2i pk(p_coords);
 	Map<Vector2i, TileMapCell>::Element *E = tile_map.find(pk);
 
@@ -526,9 +1555,9 @@ void TileMap::set_cell(const Vector2i &p_coords, int p_source_id, const Vector2i
 	}
 
 	// Get the quadrant
-	Vector2i qk = _coords_to_quadrant_coords(pk);
+	Vector2i qk = _coords_to_quadrant_coords(p_layer, pk);
 
-	Map<Vector2i, TileMapQuadrant>::Element *Q = quadrant_map.find(qk);
+	Map<Vector2i, TileMapQuadrant>::Element *Q = layers[p_layer].quadrant_map.find(qk);
 
 	if (source_id == TileSet::INVALID_SOURCE) {
 		// Erase existing cell in the tile map.
@@ -555,7 +1584,7 @@ void TileMap::set_cell(const Vector2i &p_coords, int p_source_id, const Vector2i
 
 			// Create a new quadrant if needed, then insert the cell if needed.
 			if (!Q) {
-				Q = _create_quadrant(qk);
+				Q = _create_quadrant(p_layer, qk);
 			}
 			TileMapQuadrant &q = Q->get();
 			q.cells.insert(pk);
@@ -579,8 +1608,11 @@ void TileMap::set_cell(const Vector2i &p_coords, int p_source_id, const Vector2i
 	}
 }
 
-int TileMap::get_cell_source_id(const Vector2i &p_coords, bool p_use_proxies) const {
+int TileMap::get_cell_source_id(int p_layer, const Vector2i &p_coords, bool p_use_proxies) const {
+	ERR_FAIL_INDEX_V(p_layer, (int)layers.size(), TileSet::INVALID_SOURCE);
+
 	// Get a cell source id from position
+	const Map<Vector2i, TileMapCell> &tile_map = layers[p_layer].tile_map;
 	const Map<Vector2i, TileMapCell>::Element *E = tile_map.find(p_coords);
 
 	if (!E) {
@@ -595,8 +1627,11 @@ int TileMap::get_cell_source_id(const Vector2i &p_coords, bool p_use_proxies) co
 	return E->get().source_id;
 }
 
-Vector2i TileMap::get_cell_atlas_coords(const Vector2i &p_coords, bool p_use_proxies) const {
+Vector2i TileMap::get_cell_atlas_coords(int p_layer, const Vector2i &p_coords, bool p_use_proxies) const {
+	ERR_FAIL_INDEX_V(p_layer, (int)layers.size(), TileSetSource::INVALID_ATLAS_COORDS);
+
 	// Get a cell source id from position
+	const Map<Vector2i, TileMapCell> &tile_map = layers[p_layer].tile_map;
 	const Map<Vector2i, TileMapCell>::Element *E = tile_map.find(p_coords);
 
 	if (!E) {
@@ -611,8 +1646,11 @@ Vector2i TileMap::get_cell_atlas_coords(const Vector2i &p_coords, bool p_use_pro
 	return E->get().get_atlas_coords();
 }
 
-int TileMap::get_cell_alternative_tile(const Vector2i &p_coords, bool p_use_proxies) const {
+int TileMap::get_cell_alternative_tile(int p_layer, const Vector2i &p_coords, bool p_use_proxies) const {
+	ERR_FAIL_INDEX_V(p_layer, (int)layers.size(), TileSetSource::INVALID_TILE_ALTERNATIVE);
+
 	// Get a cell source id from position
+	const Map<Vector2i, TileMapCell> &tile_map = layers[p_layer].tile_map;
 	const Map<Vector2i, TileMapCell>::Element *E = tile_map.find(p_coords);
 
 	if (!E) {
@@ -627,7 +1665,8 @@ int TileMap::get_cell_alternative_tile(const Vector2i &p_coords, bool p_use_prox
 	return E->get().alternative_tile;
 }
 
-TileMapPattern *TileMap::get_pattern(TypedArray<Vector2i> p_coords_array) {
+TileMapPattern *TileMap::get_pattern(int p_layer, TypedArray<Vector2i> p_coords_array) {
+	ERR_FAIL_INDEX_V(p_layer, (int)layers.size(), nullptr);
 	ERR_FAIL_COND_V(!tile_set.is_valid(), nullptr);
 
 	TileMapPattern *output = memnew(TileMapPattern);
@@ -673,7 +1712,7 @@ TileMapPattern *TileMap::get_pattern(TypedArray<Vector2i> p_coords_array) {
 	for (int i = 0; i < coords_in_pattern_array.size(); i++) {
 		Vector2i coords = p_coords_array[i];
 		Vector2i coords_in_pattern = coords_in_pattern_array[i];
-		output->set_cell(coords_in_pattern + ensure_positive_offset, get_cell_source_id(coords), get_cell_atlas_coords(coords), get_cell_alternative_tile(coords));
+		output->set_cell(coords_in_pattern + ensure_positive_offset, get_cell_source_id(p_layer, coords), get_cell_atlas_coords(p_layer, coords), get_cell_alternative_tile(p_layer, coords));
 	}
 
 	return output;
@@ -702,17 +1741,20 @@ Vector2i TileMap::map_pattern(Vector2i p_position_in_tilemap, Vector2i p_coords_
 	return output;
 }
 
-void TileMap::set_pattern(Vector2i p_position, const TileMapPattern *p_pattern) {
+void TileMap::set_pattern(int p_layer, Vector2i p_position, const TileMapPattern *p_pattern) {
+	ERR_FAIL_INDEX(p_layer, (int)layers.size());
 	ERR_FAIL_COND(!tile_set.is_valid());
 
 	TypedArray<Vector2i> used_cells = p_pattern->get_used_cells();
 	for (int i = 0; i < used_cells.size(); i++) {
 		Vector2i coords = map_pattern(p_position, used_cells[i], p_pattern);
-		set_cell(coords, p_pattern->get_cell_source_id(coords), p_pattern->get_cell_atlas_coords(coords), p_pattern->get_cell_alternative_tile(coords));
+		set_cell(p_layer, coords, p_pattern->get_cell_source_id(coords), p_pattern->get_cell_atlas_coords(coords), p_pattern->get_cell_alternative_tile(coords));
 	}
 }
 
-TileMapCell TileMap::get_cell(const Vector2i &p_coords, bool p_use_proxies) const {
+TileMapCell TileMap::get_cell(int p_layer, const Vector2i &p_coords, bool p_use_proxies) const {
+	ERR_FAIL_INDEX_V(p_layer, (int)layers.size(), TileMapCell());
+	const Map<Vector2i, TileMapCell> &tile_map = layers[p_layer].tile_map;
 	if (!tile_map.has(p_coords)) {
 		return TileMapCell();
 	} else {
@@ -727,77 +1769,62 @@ TileMapCell TileMap::get_cell(const Vector2i &p_coords, bool p_use_proxies) cons
 	}
 }
 
-Map<Vector2i, TileMapQuadrant> &TileMap::get_quadrant_map() {
-	return quadrant_map;
+Map<Vector2i, TileMapQuadrant> *TileMap::get_quadrant_map(int p_layer) {
+	ERR_FAIL_INDEX_V(p_layer, (int)layers.size(), nullptr);
+
+	return &layers[p_layer].quadrant_map;
 }
 
 void TileMap::fix_invalid_tiles() {
 	ERR_FAIL_COND_MSG(tile_set.is_null(), "Cannot fix invalid tiles if Tileset is not open.");
 
-	Set<Vector2i> coords;
-	for (Map<Vector2i, TileMapCell>::Element *E = tile_map.front(); E; E = E->next()) {
-		TileSetSource *source = *tile_set->get_source(E->get().source_id);
-		if (!source || !source->has_tile(E->get().get_atlas_coords()) || !source->has_alternative_tile(E->get().get_atlas_coords(), E->get().alternative_tile)) {
-			coords.insert(E->key());
+	for (unsigned int i = 0; i < layers.size(); i++) {
+		const Map<Vector2i, TileMapCell> &tile_map = layers[i].tile_map;
+		Set<Vector2i> coords;
+		for (Map<Vector2i, TileMapCell>::Element *E = tile_map.front(); E; E = E->next()) {
+			TileSetSource *source = *tile_set->get_source(E->get().source_id);
+			if (!source || !source->has_tile(E->get().get_atlas_coords()) || !source->has_alternative_tile(E->get().get_atlas_coords(), E->get().alternative_tile)) {
+				coords.insert(E->key());
+			}
 		}
-	}
-	for (Set<Vector2i>::Element *E = coords.front(); E; E = E->next()) {
-		set_cell(E->get(), TileSet::INVALID_SOURCE, TileSetSource::INVALID_ATLAS_COORDS, TileSetSource::INVALID_TILE_ALTERNATIVE);
-	}
-}
-
-void TileMap::_recreate_quadrants() {
-	// Clear then recreate all quadrants.
-	_clear_quadrants();
-
-	for (Map<Vector2i, TileMapCell>::Element *E = tile_map.front(); E; E = E->next()) {
-		Vector2i qk = _coords_to_quadrant_coords(Vector2i(E->key().x, E->key().y));
-
-		Map<Vector2i, TileMapQuadrant>::Element *Q = quadrant_map.find(qk);
-		if (!Q) {
-			Q = _create_quadrant(qk);
-			dirty_quadrant_list.add(&Q->get().dirty_list_element);
+		for (Set<Vector2i>::Element *E = coords.front(); E; E = E->next()) {
+			set_cell(i, E->get(), TileSet::INVALID_SOURCE, TileSetSource::INVALID_ATLAS_COORDS, TileSetSource::INVALID_TILE_ALTERNATIVE);
 		}
-
-		Vector2i pk = E->key();
-		Q->get().cells.insert(pk);
-
-		_make_quadrant_dirty(Q, false);
 	}
-
-	update_dirty_quadrants();
 }
 
-void TileMap::_clear_quadrants() {
-	// Clear quadrants.
-	while (quadrant_map.size()) {
-		_erase_quadrant(quadrant_map.front());
-	}
+void TileMap::clear_layer(int p_layer) {
+	ERR_FAIL_INDEX(p_layer, (int)layers.size());
 
-	// Clear the dirty quadrants list.
-	while (dirty_quadrant_list.first()) {
-		dirty_quadrant_list.remove(dirty_quadrant_list.first());
-	}
+	// Remove all tiles.
+	_clear_layer_internals(p_layer);
+	layers[p_layer].tile_map.clear();
+
+	used_size_cache_dirty = true;
 }
 
 void TileMap::clear() {
 	// Remove all tiles.
-	_clear_quadrants();
-	tile_map.clear();
+	_clear_internals();
+	for (unsigned int i = 0; i < layers.size(); i++) {
+		layers[i].tile_map.clear();
+	}
 	used_size_cache_dirty = true;
 }
 
-void TileMap::_set_tile_data(const Vector<int> &p_data) {
-	// Set data for a given tile from raw data.
+void TileMap::_set_tile_data(int p_layer, const Vector<int> &p_data) {
+	ERR_FAIL_INDEX(p_layer, (int)layers.size());
 	ERR_FAIL_COND(format > FORMAT_3);
 
+	// Set data for a given tile from raw data.
+
 	int c = p_data.size();
 	const int *r = p_data.ptr();
 
 	int offset = (format >= FORMAT_2) ? 3 : 2;
 	ERR_FAIL_COND_MSG(c % offset != 0, "Corrupted tile data.");
 
-	clear();
+	clear_layer(p_layer);
 
 #ifdef DISABLE_DEPRECATED
 	ERR_FAIL_COND_MSG(format != FORMAT_3, vformat("Cannot handle deprecated TileMap data format version %d. This Godot version was compiled with no support for deprecated data.", format));
@@ -831,7 +1858,7 @@ void TileMap::_set_tile_data(const Vector<int> &p_data) {
 			uint16_t atlas_coords_x = decode_uint16(&local[6]);
 			uint16_t atlas_coords_y = decode_uint16(&local[8]);
 			uint16_t alternative_tile = decode_uint16(&local[10]);
-			set_cell(Vector2i(x, y), source_id, Vector2i(atlas_coords_x, atlas_coords_y), alternative_tile);
+			set_cell(p_layer, Vector2i(x, y), source_id, Vector2i(atlas_coords_x, atlas_coords_y), alternative_tile);
 		} else {
 #ifndef DISABLE_DEPRECATED
 			// Previous decated format.
@@ -854,21 +1881,25 @@ void TileMap::_set_tile_data(const Vector<int> &p_data) {
 			if (tile_set.is_valid()) {
 				Array a = tile_set->compatibility_tilemap_map(v, Vector2i(coord_x, coord_y), flip_h, flip_v, transpose);
 				if (a.size() == 3) {
-					set_cell(Vector2i(x, y), a[0], a[1], a[2]);
+					set_cell(p_layer, Vector2i(x, y), a[0], a[1], a[2]);
 				} else {
 					ERR_PRINT(vformat("No valid tile in Tileset for: tile:%s coords:%s flip_h:%s flip_v:%s transpose:%s", v, Vector2i(coord_x, coord_y), flip_h, flip_v, transpose));
 				}
 			} else {
 				int compatibility_alternative_tile = ((int)flip_h) + ((int)flip_v << 1) + ((int)transpose << 2);
-				set_cell(Vector2i(x, y), v, Vector2i(coord_x, coord_y), compatibility_alternative_tile);
+				set_cell(p_layer, Vector2i(x, y), v, Vector2i(coord_x, coord_y), compatibility_alternative_tile);
 			}
 #endif
 		}
 	}
+	emit_signal(SNAME("changed"));
 }
 
-Vector<int> TileMap::_get_tile_data() const {
+Vector<int> TileMap::_get_tile_data(int p_layer) const {
+	ERR_FAIL_INDEX_V(p_layer, (int)layers.size(), Vector<int>());
+
 	// Export tile data to raw format
+	const Map<Vector2i, TileMapCell> &tile_map = layers[p_layer].tile_map;
 	Vector<int> data;
 	data.resize(tile_map.size() * 3);
 	int *w = data.ptrw();
@@ -894,7 +1925,7 @@ Vector<int> TileMap::_get_tile_data() const {
 Rect2 TileMap::_edit_get_rect() const {
 	// Return the visible rect of the tilemap
 	if (pending_update) {
-		const_cast<TileMap *>(this)->update_dirty_quadrants();
+		const_cast<TileMap *>(this)->_update_dirty_quadrants();
 	} else {
 		const_cast<TileMap *>(this)->_recompute_rect_cache();
 	}
@@ -903,38 +1934,99 @@ Rect2 TileMap::_edit_get_rect() const {
 #endif
 
 bool TileMap::_set(const StringName &p_name, const Variant &p_value) {
+	Vector<String> components = String(p_name).split("/", true, 2);
 	if (p_name == "format") {
 		if (p_value.get_type() == Variant::INT) {
 			format = (DataFormat)(p_value.operator int64_t()); // Set format used for loading
 			return true;
 		}
-	} else if (p_name == "tile_data") {
+	} else if (p_name == "tile_data") { // Kept for compatibility reasons.
 		if (p_value.is_array()) {
-			_set_tile_data(p_value);
+			if (layers.size() < 1) {
+				layers.resize(1);
+			}
+			_set_tile_data(0, p_value);
 			return true;
 		}
 		return false;
+	} else if (components.size() == 2 && components[0].begins_with("layer_") && components[0].trim_prefix("layer_").is_valid_int()) {
+		int index = components[0].trim_prefix("layer_").to_int();
+		if (index < 0 || index >= (int)layers.size()) {
+			return false;
+		}
+
+		if (components[1] == "name") {
+			set_layer_name(index, p_value);
+			return true;
+		} else if (components[1] == "enabled") {
+			set_layer_enabled(index, p_value);
+			return true;
+		} else if (components[1] == "y_sort_enabled") {
+			set_layer_y_sort_enabled(index, p_value);
+			return true;
+		} else if (components[1] == "y_sort_origin") {
+			set_layer_y_sort_origin(index, p_value);
+			return true;
+		} else if (components[1] == "z_index") {
+			set_layer_z_index(index, p_value);
+			return true;
+		} else if (components[1] == "tile_data") {
+			_set_tile_data(index, p_value);
+			return true;
+		} else {
+			return false;
+		}
 	}
 	return false;
 }
 
 bool TileMap::_get(const StringName &p_name, Variant &r_ret) const {
+	Vector<String> components = String(p_name).split("/", true, 2);
 	if (p_name == "format") {
 		r_ret = FORMAT_3; // When saving, always save highest format
 		return true;
-	} else if (p_name == "tile_data") {
-		r_ret = _get_tile_data();
-		return true;
+	} else if (components.size() == 2 && components[0].begins_with("layer_") && components[0].trim_prefix("layer_").is_valid_int()) {
+		int index = components[0].trim_prefix("layer_").to_int();
+		if (index < 0 || index >= (int)layers.size()) {
+			return false;
+		}
+
+		if (components[1] == "name") {
+			r_ret = get_layer_name(index);
+			return true;
+		} else if (components[1] == "enabled") {
+			r_ret = is_layer_enabled(index);
+			return true;
+		} else if (components[1] == "y_sort_enabled") {
+			r_ret = is_layer_y_sort_enabled(index);
+			return true;
+		} else if (components[1] == "y_sort_origin") {
+			r_ret = get_layer_y_sort_origin(index);
+			return true;
+		} else if (components[1] == "z_index") {
+			r_ret = get_layer_z_index(index);
+			return true;
+		} else if (components[1] == "tile_data") {
+			r_ret = _get_tile_data(index);
+			return true;
+		} else {
+			return false;
+		}
 	}
 	return false;
 }
 
 void TileMap::_get_property_list(List<PropertyInfo> *p_list) const {
-	PropertyInfo p(Variant::INT, "format", PROPERTY_HINT_NONE, "", PROPERTY_USAGE_NOEDITOR | PROPERTY_USAGE_INTERNAL);
-	p_list->push_back(p);
-
-	p = PropertyInfo(Variant::OBJECT, "tile_data", PROPERTY_HINT_NONE, "", PROPERTY_USAGE_NOEDITOR | PROPERTY_USAGE_INTERNAL);
-	p_list->push_back(p);
+	p_list->push_back(PropertyInfo(Variant::INT, "format", PROPERTY_HINT_NONE, "", PROPERTY_USAGE_NOEDITOR | PROPERTY_USAGE_INTERNAL));
+	p_list->push_back(PropertyInfo(Variant::NIL, "Layers", PROPERTY_HINT_NONE, "", PROPERTY_USAGE_GROUP));
+	for (unsigned int i = 0; i < layers.size(); i++) {
+		p_list->push_back(PropertyInfo(Variant::STRING, vformat("layer_%d/name", i), PROPERTY_HINT_NONE));
+		p_list->push_back(PropertyInfo(Variant::BOOL, vformat("layer_%d/enabled", i), PROPERTY_HINT_NONE));
+		p_list->push_back(PropertyInfo(Variant::BOOL, vformat("layer_%d/y_sort_enabled", i), PROPERTY_HINT_NONE));
+		p_list->push_back(PropertyInfo(Variant::INT, vformat("layer_%d/y_sort_origin", i), PROPERTY_HINT_NONE));
+		p_list->push_back(PropertyInfo(Variant::INT, vformat("layer_%d/z_index", i), PROPERTY_HINT_NONE));
+		p_list->push_back(PropertyInfo(Variant::OBJECT, vformat("layer_%d/tile_data", i), PROPERTY_HINT_NONE, "", PROPERTY_USAGE_NOEDITOR));
+	}
 }
 
 Vector2 TileMap::map_to_world(const Vector2i &p_pos) const {
@@ -1557,12 +2649,14 @@ Vector2i TileMap::get_neighbor_cell(const Vector2i &p_coords, TileSet::CellNeigh
 	}
 }
 
-TypedArray<Vector2i> TileMap::get_used_cells() const {
+TypedArray<Vector2i> TileMap::get_used_cells(int p_layer) const {
+	ERR_FAIL_INDEX_V(p_layer, (int)layers.size(), TypedArray<Vector2i>());
+
 	// Returns the cells used in the tilemap.
 	TypedArray<Vector2i> a;
-	a.resize(tile_map.size());
+	a.resize(layers[p_layer].tile_map.size());
 	int i = 0;
-	for (Map<Vector2i, TileMapCell>::Element *E = tile_map.front(); E; E = E->next()) {
+	for (Map<Vector2i, TileMapCell>::Element *E = layers[p_layer].tile_map.front(); E; E = E->next()) {
 		Vector2i p(E->key().x, E->key().y);
 		a[i++] = p;
 	}
@@ -1573,18 +2667,20 @@ TypedArray<Vector2i> TileMap::get_used_cells() const {
 Rect2 TileMap::get_used_rect() { // Not const because of cache
 	// Return the rect of the currently used area
 	if (used_size_cache_dirty) {
-		if (tile_map.size() > 0) {
-			used_size_cache = Rect2(tile_map.front()->key().x, tile_map.front()->key().y, 0, 0);
+		bool first = true;
+		for (unsigned int i = 0; i < layers.size(); i++) {
+			const Map<Vector2i, TileMapCell> &tile_map = layers[i].tile_map;
+			if (tile_map.size() > 0) {
+				if (first) {
+					used_size_cache = Rect2(tile_map.front()->key().x, tile_map.front()->key().y, 1, 1);
+					first = false;
+				}
 
-			for (Map<Vector2i, TileMapCell>::Element *E = tile_map.front(); E; E = E->next()) {
-				used_size_cache.expand_to(Vector2(E->key().x, E->key().y));
+				for (Map<Vector2i, TileMapCell>::Element *E = tile_map.front(); E; E = E->next()) {
+					used_size_cache.expand_to(Vector2(E->key().x + 1, E->key().y + 1));
+				}
 			}
-
-			used_size_cache.size += Vector2(1, 1);
-		} else {
-			used_size_cache = Rect2();
 		}
-
 		used_size_cache_dirty = false;
 	}
 
@@ -1596,10 +2692,13 @@ Rect2 TileMap::get_used_rect() { // Not const because of cache
 void TileMap::set_light_mask(int p_light_mask) {
 	// Occlusion: set light mask.
 	CanvasItem::set_light_mask(p_light_mask);
-	for (Map<Vector2i, TileMapQuadrant>::Element *E = quadrant_map.front(); E; E = E->next()) {
-		for (const RID &F : E->get().canvas_items) {
-			RenderingServer::get_singleton()->canvas_item_set_light_mask(F, get_light_mask());
+	for (unsigned int layer = 0; layer < layers.size(); layer++) {
+		for (Map<Vector2i, TileMapQuadrant>::Element *E = layers[layer].quadrant_map.front(); E; E = E->next()) {
+			for (const RID &ci : E->get().canvas_items) {
+				RenderingServer::get_singleton()->canvas_item_set_light_mask(ci, get_light_mask());
+			}
 		}
+		_rendering_update_layer(layer);
 	}
 }
 
@@ -1608,11 +2707,14 @@ void TileMap::set_material(const Ref<Material> &p_material) {
 	CanvasItem::set_material(p_material);
 
 	// Update material for the whole tilemap.
-	for (Map<Vector2i, TileMapQuadrant>::Element *E = quadrant_map.front(); E; E = E->next()) {
-		TileMapQuadrant &q = E->get();
-		for (const RID &F : q.canvas_items) {
-			RS::get_singleton()->canvas_item_set_use_parent_material(F, get_use_parent_material() || get_material().is_valid());
+	for (unsigned int layer = 0; layer < layers.size(); layer++) {
+		for (Map<Vector2i, TileMapQuadrant>::Element *E = layers[layer].quadrant_map.front(); E; E = E->next()) {
+			TileMapQuadrant &q = E->get();
+			for (const RID &ci : q.canvas_items) {
+				RS::get_singleton()->canvas_item_set_use_parent_material(ci, get_use_parent_material() || get_material().is_valid());
+			}
 		}
+		_rendering_update_layer(layer);
 	}
 }
 
@@ -1621,35 +2723,44 @@ void TileMap::set_use_parent_material(bool p_use_parent_material) {
 	CanvasItem::set_use_parent_material(p_use_parent_material);
 
 	// Update use_parent_material for the whole tilemap.
-	for (Map<Vector2i, TileMapQuadrant>::Element *E = quadrant_map.front(); E; E = E->next()) {
-		TileMapQuadrant &q = E->get();
-		for (const RID &F : q.canvas_items) {
-			RS::get_singleton()->canvas_item_set_use_parent_material(F, get_use_parent_material() || get_material().is_valid());
+	for (unsigned int layer = 0; layer < layers.size(); layer++) {
+		for (Map<Vector2i, TileMapQuadrant>::Element *E = layers[layer].quadrant_map.front(); E; E = E->next()) {
+			TileMapQuadrant &q = E->get();
+			for (const RID &ci : q.canvas_items) {
+				RS::get_singleton()->canvas_item_set_use_parent_material(ci, get_use_parent_material() || get_material().is_valid());
+			}
 		}
+		_rendering_update_layer(layer);
 	}
 }
 
 void TileMap::set_texture_filter(TextureFilter p_texture_filter) {
 	// Set a default texture filter for the whole tilemap
 	CanvasItem::set_texture_filter(p_texture_filter);
-	for (Map<Vector2i, TileMapQuadrant>::Element *F = quadrant_map.front(); F; F = F->next()) {
-		TileMapQuadrant &q = F->get();
-		for (const RID &E : q.canvas_items) {
-			RenderingServer::get_singleton()->canvas_item_set_default_texture_filter(E, RS::CanvasItemTextureFilter(p_texture_filter));
-			_make_quadrant_dirty(F);
+	for (unsigned int layer = 0; layer < layers.size(); layer++) {
+		for (Map<Vector2i, TileMapQuadrant>::Element *F = layers[layer].quadrant_map.front(); F; F = F->next()) {
+			TileMapQuadrant &q = F->get();
+			for (const RID &ci : q.canvas_items) {
+				RenderingServer::get_singleton()->canvas_item_set_default_texture_filter(ci, RS::CanvasItemTextureFilter(p_texture_filter));
+				_make_quadrant_dirty(F);
+			}
 		}
+		_rendering_update_layer(layer);
 	}
 }
 
 void TileMap::set_texture_repeat(CanvasItem::TextureRepeat p_texture_repeat) {
 	// Set a default texture repeat for the whole tilemap
 	CanvasItem::set_texture_repeat(p_texture_repeat);
-	for (Map<Vector2i, TileMapQuadrant>::Element *F = quadrant_map.front(); F; F = F->next()) {
-		TileMapQuadrant &q = F->get();
-		for (const RID &E : q.canvas_items) {
-			RenderingServer::get_singleton()->canvas_item_set_default_texture_repeat(E, RS::CanvasItemTextureRepeat(p_texture_repeat));
-			_make_quadrant_dirty(F);
+	for (unsigned int layer = 0; layer < layers.size(); layer++) {
+		for (Map<Vector2i, TileMapQuadrant>::Element *F = layers[layer].quadrant_map.front(); F; F = F->next()) {
+			TileMapQuadrant &q = F->get();
+			for (const RID &ci : q.canvas_items) {
+				RenderingServer::get_singleton()->canvas_item_set_default_texture_repeat(ci, RS::CanvasItemTextureRepeat(p_texture_repeat));
+				_make_quadrant_dirty(F);
+			}
 		}
+		_rendering_update_layer(layer);
 	}
 }
 
@@ -1744,6 +2855,28 @@ void TileMap::draw_cells_outline(Control *p_control, Set<Vector2i> p_cells, Colo
 	}
 }
 
+TypedArray<String> TileMap::get_configuration_warnings() const {
+	TypedArray<String> warnings = Node::get_configuration_warnings();
+
+	// Retrieve the set of Z index values with a Y-sorted layer.
+	Set<int> y_sorted_z_index;
+	for (int layer = 0; layer < (int)layers.size(); layer++) {
+		if (layers[layer].y_sort_enabled) {
+			y_sorted_z_index.insert(layers[layer].z_index);
+		}
+	}
+
+	// Check if we have a non-sorted layer in a Z-index with a Y-sorted layer.
+	for (int layer = 0; layer < (int)layers.size(); layer++) {
+		if (!layers[layer].y_sort_enabled && y_sorted_z_index.has(layers[layer].z_index)) {
+			warnings.push_back(TTR("A Y-sorted layer has the same Z-index value as a not Y-sorted layer.\nThis may lead to unwanted behaviors, as a layer that is not Y-sorted will be Y-sorted as a whole with tiles from Y-sorted layers."));
+			break;
+		}
+	}
+
+	return warnings;
+}
+
 void TileMap::_bind_methods() {
 	ClassDB::bind_method(D_METHOD("set_tileset", "tileset"), &TileMap::set_tileset);
 	ClassDB::bind_method(D_METHOD("get_tileset"), &TileMap::get_tileset);
@@ -1751,22 +2884,35 @@ void TileMap::_bind_methods() {
 	ClassDB::bind_method(D_METHOD("set_quadrant_size", "size"), &TileMap::set_quadrant_size);
 	ClassDB::bind_method(D_METHOD("get_quadrant_size"), &TileMap::get_quadrant_size);
 
-	ClassDB::bind_method(D_METHOD("set_collision_visibility_mode", "show_collision"), &TileMap::set_collision_visibility_mode);
+	ClassDB::bind_method(D_METHOD("set_layers_count", "layers_count"), &TileMap::set_layers_count);
+	ClassDB::bind_method(D_METHOD("get_layers_count"), &TileMap::get_layers_count);
+	ClassDB::bind_method(D_METHOD("set_layer_name", "layer", "name"), &TileMap::set_layer_name);
+	ClassDB::bind_method(D_METHOD("get_layer_name", "layer"), &TileMap::get_layer_name);
+	ClassDB::bind_method(D_METHOD("set_layer_enabled", "layer", "enabled"), &TileMap::set_layer_enabled);
+	ClassDB::bind_method(D_METHOD("is_layer_enabled", "layer"), &TileMap::is_layer_enabled);
+	ClassDB::bind_method(D_METHOD("set_layer_y_sort_enabled", "layer", "y_sort_enabled"), &TileMap::set_layer_y_sort_enabled);
+	ClassDB::bind_method(D_METHOD("is_layer_y_sort_enabled", "layer"), &TileMap::is_layer_y_sort_enabled);
+	ClassDB::bind_method(D_METHOD("set_layer_y_sort_origin", "layer", "y_sort_origin"), &TileMap::set_layer_y_sort_origin);
+	ClassDB::bind_method(D_METHOD("get_layer_y_sort_origin", "layer"), &TileMap::get_layer_y_sort_origin);
+	ClassDB::bind_method(D_METHOD("set_layer_z_index", "layer", "z_index"), &TileMap::set_layer_z_index);
+	ClassDB::bind_method(D_METHOD("get_layer_z_indexd", "layer"), &TileMap::get_layer_z_index);
+
+	ClassDB::bind_method(D_METHOD("set_collision_visibility_mode", "collision_visibility_mode"), &TileMap::set_collision_visibility_mode);
 	ClassDB::bind_method(D_METHOD("get_collision_visibility_mode"), &TileMap::get_collision_visibility_mode);
 
-	ClassDB::bind_method(D_METHOD("set_navigation_visibility_mode", "show_navigation"), &TileMap::set_navigation_visibility_mode);
+	ClassDB::bind_method(D_METHOD("set_navigation_visibility_mode", "navigation_visibility_mode"), &TileMap::set_navigation_visibility_mode);
 	ClassDB::bind_method(D_METHOD("get_navigation_visibility_mode"), &TileMap::get_navigation_visibility_mode);
 
-	ClassDB::bind_method(D_METHOD("set_cell", "coords", "source_id", "atlas_coords", "alternative_tile"), &TileMap::set_cell, DEFVAL(TileSet::INVALID_SOURCE), DEFVAL(TileSetSource::INVALID_ATLAS_COORDS), DEFVAL(TileSetSource::INVALID_TILE_ALTERNATIVE));
-	ClassDB::bind_method(D_METHOD("get_cell_source_id", "coords", "use_proxies"), &TileMap::get_cell_source_id);
-	ClassDB::bind_method(D_METHOD("get_cell_atlas_coords", "coords", "use_proxies"), &TileMap::get_cell_atlas_coords);
-	ClassDB::bind_method(D_METHOD("get_cell_alternative_tile", "coords", "use_proxies"), &TileMap::get_cell_alternative_tile);
+	ClassDB::bind_method(D_METHOD("set_cell", "layer", "coords", "source_id", "atlas_coords", "alternative_tile"), &TileMap::set_cell, DEFVAL(TileSet::INVALID_SOURCE), DEFVAL(TileSetSource::INVALID_ATLAS_COORDS), DEFVAL(TileSetSource::INVALID_TILE_ALTERNATIVE));
+	ClassDB::bind_method(D_METHOD("get_cell_source_id", "layer", "coords", "use_proxies"), &TileMap::get_cell_source_id);
+	ClassDB::bind_method(D_METHOD("get_cell_atlas_coords", "layer", "coords", "use_proxies"), &TileMap::get_cell_atlas_coords);
+	ClassDB::bind_method(D_METHOD("get_cell_alternative_tile", "layer", "coords", "use_proxies"), &TileMap::get_cell_alternative_tile);
 
 	ClassDB::bind_method(D_METHOD("fix_invalid_tiles"), &TileMap::fix_invalid_tiles);
 	ClassDB::bind_method(D_METHOD("get_surrounding_tiles", "coords"), &TileMap::get_surrounding_tiles);
 	ClassDB::bind_method(D_METHOD("clear"), &TileMap::clear);
 
-	ClassDB::bind_method(D_METHOD("get_used_cells"), &TileMap::get_used_cells);
+	ClassDB::bind_method(D_METHOD("get_used_cells", "layer"), &TileMap::get_used_cells);
 	ClassDB::bind_method(D_METHOD("get_used_rect"), &TileMap::get_used_rect);
 
 	ClassDB::bind_method(D_METHOD("map_to_world", "map_position"), &TileMap::map_to_world);
@@ -1774,15 +2920,19 @@ void TileMap::_bind_methods() {
 
 	ClassDB::bind_method(D_METHOD("get_neighbor_cell", "coords", "neighbor"), &TileMap::get_neighbor_cell);
 
-	ClassDB::bind_method(D_METHOD("update_dirty_quadrants"), &TileMap::update_dirty_quadrants);
+	ClassDB::bind_method(D_METHOD("_update_dirty_quadrants"), &TileMap::_update_dirty_quadrants);
 
-	ClassDB::bind_method(D_METHOD("_set_tile_data"), &TileMap::_set_tile_data);
-	ClassDB::bind_method(D_METHOD("_get_tile_data"), &TileMap::_get_tile_data);
+	ClassDB::bind_method(D_METHOD("_set_tile_data", "layer"), &TileMap::_set_tile_data);
+	ClassDB::bind_method(D_METHOD("_get_tile_data", "layer"), &TileMap::_get_tile_data);
 
 	ADD_PROPERTY(PropertyInfo(Variant::OBJECT, "tile_set", PROPERTY_HINT_RESOURCE_TYPE, "TileSet"), "set_tileset", "get_tileset");
 	ADD_PROPERTY(PropertyInfo(Variant::INT, "cell_quadrant_size", PROPERTY_HINT_RANGE, "1,128,1"), "set_quadrant_size", "get_quadrant_size");
-	ADD_PROPERTY(PropertyInfo(Variant::INT, "show_collision", PROPERTY_HINT_ENUM, "Default,Force Show,Force Hide"), "set_collision_visibility_mode", "get_collision_visibility_mode");
-	ADD_PROPERTY(PropertyInfo(Variant::INT, "show_navigation", PROPERTY_HINT_ENUM, "Default,Force Show,Force Hide"), "set_navigation_visibility_mode", "get_navigation_visibility_mode");
+	ADD_PROPERTY(PropertyInfo(Variant::INT, "collision_visibility_mode", PROPERTY_HINT_ENUM, "Default,Force Show,Force Hide"), "set_collision_visibility_mode", "get_collision_visibility_mode");
+	ADD_PROPERTY(PropertyInfo(Variant::INT, "navigation_visibility_mode", PROPERTY_HINT_ENUM, "Default,Force Show,Force Hide"), "set_navigation_visibility_mode", "get_navigation_visibility_mode");
+
+	ADD_GROUP("Layers", "");
+	ADD_PROPERTY(PropertyInfo(Variant::INT, "layers_count"), "set_layers_count", "get_layers_count");
+	ADD_PROPERTY_DEFAULT("layers_count", 1);
 
 	ADD_PROPERTY_DEFAULT("format", FORMAT_1);
 
@@ -1795,17 +2945,19 @@ void TileMap::_bind_methods() {
 
 void TileMap::_tile_set_changed() {
 	emit_signal(SNAME("changed"));
-	_make_all_quadrants_dirty(true);
+	_recreate_internals();
 }
 
 TileMap::TileMap() {
 	set_notify_transform(true);
 	set_notify_local_transform(false);
+
+	layers.resize(1);
 }
 
 TileMap::~TileMap() {
 	if (tile_set.is_valid()) {
 		tile_set->disconnect("changed", callable_mp(this, &TileMap::_tile_set_changed));
 	}
-	_clear_quadrants();
+	_clear_internals();
 }
diff --git a/scene/2d/tile_map.h b/scene/2d/tile_map.h
index 9e35e73ad8..4800780f94 100644
--- a/scene/2d/tile_map.h
+++ b/scene/2d/tile_map.h
@@ -99,7 +99,8 @@ struct TileMapQuadrant {
 	// Dirty list element
 	SelfList<TileMapQuadrant> dirty_list_element;
 
-	// Quadrant coords.
+	// Quadrant layer and coords.
+	int layer = -1;
 	Vector2i coords;
 
 	// TileMapCells
@@ -126,6 +127,7 @@ struct TileMapQuadrant {
 	Map<Vector2i, String> scenes;
 
 	void operator=(const TileMapQuadrant &q) {
+		layer = q.layer;
 		coords = q.coords;
 		debug_canvas_item = q.debug_canvas_item;
 		canvas_items = q.canvas_items;
@@ -136,6 +138,7 @@ struct TileMapQuadrant {
 
 	TileMapQuadrant(const TileMapQuadrant &q) :
 			dirty_list_element(this) {
+		layer = q.layer;
 		coords = q.coords;
 		debug_canvas_item = q.debug_canvas_item;
 		canvas_items = q.canvas_items;
@@ -196,11 +199,13 @@ private:
 	};
 	mutable DataFormat format = FORMAT_1; // Assume lowest possible format if none is present;
 
+	static constexpr float FP_ADJUST = 0.00001;
+
 	// Properties.
 	Ref<TileSet> tile_set;
 	int quadrant_size = 16;
-	VisibilityMode show_collision = VISIBILITY_MODE_DEFAULT;
-	VisibilityMode show_navigation = VISIBILITY_MODE_DEFAULT;
+	VisibilityMode collision_visibility_mode = VISIBILITY_MODE_DEFAULT;
+	VisibilityMode navigation_visibility_mode = VISIBILITY_MODE_DEFAULT;
 
 	// Updates.
 	bool pending_update = false;
@@ -211,25 +216,69 @@ private:
 	Rect2 used_size_cache;
 	bool used_size_cache_dirty = true;
 
-	// Map of cells.
-	Map<Vector2i, TileMapCell> tile_map;
+	// TileMap layers.
+	struct TileMapLayer {
+		String name;
+		bool enabled = true;
+		bool y_sort_enabled = false;
+		int y_sort_origin = 0;
+		int z_index = 0;
+		RID canvas_item;
+		Map<Vector2i, TileMapCell> tile_map;
+		Map<Vector2i, TileMapQuadrant> quadrant_map;
+		SelfList<TileMapQuadrant>::List dirty_quadrant_list;
+	};
+	LocalVector<TileMapLayer> layers;
+	int selected_layer = -1;
+
+	// Quadrants and internals management.
+	Vector2i _coords_to_quadrant_coords(int p_layer, const Vector2i &p_coords) const;
+
+	Map<Vector2i, TileMapQuadrant>::Element *_create_quadrant(int p_layer, const Vector2i &p_qk);
+
+	void _make_quadrant_dirty(Map<Vector2i, TileMapQuadrant>::Element *Q);
+	void _make_all_quadrants_dirty();
+	void _queue_update_dirty_quadrants();
+
+	void _update_dirty_quadrants();
 
-	// Quadrants management.
-	Map<Vector2i, TileMapQuadrant> quadrant_map;
-	Vector2i _coords_to_quadrant_coords(const Vector2i &p_coords) const;
-	SelfList<TileMapQuadrant>::List dirty_quadrant_list;
+	void _recreate_internals();
 
-	Map<Vector2i, TileMapQuadrant>::Element *_create_quadrant(const Vector2i &p_qk);
 	void _erase_quadrant(Map<Vector2i, TileMapQuadrant>::Element *Q);
-	void _make_all_quadrants_dirty(bool p_update = true);
-	void _make_quadrant_dirty(Map<Vector2i, TileMapQuadrant>::Element *Q, bool p_update = true);
-	void _recreate_quadrants();
-	void _clear_quadrants();
+	void _clear_layer_internals(int p_layer);
+	void _clear_internals();
+
+	// Rect caching.
 	void _recompute_rect_cache();
 
+	// Per-system methods.
+	bool _rendering_quadrant_order_dirty = false;
+	void _rendering_notification(int p_what);
+	void _rendering_update_layer(int p_layer);
+	void _rendering_cleanup_layer(int p_layer);
+	void _rendering_update_dirty_quadrants(SelfList<TileMapQuadrant>::List &r_dirty_quadrant_list);
+	void _rendering_create_quadrant(TileMapQuadrant *p_quadrant);
+	void _rendering_cleanup_quadrant(TileMapQuadrant *p_quadrant);
+	void _rendering_draw_quadrant_debug(TileMapQuadrant *p_quadrant);
+
+	void _physics_notification(int p_what);
+	void _physics_update_dirty_quadrants(SelfList<TileMapQuadrant>::List &r_dirty_quadrant_list);
+	void _physics_create_quadrant(TileMapQuadrant *p_quadrant);
+	void _physics_cleanup_quadrant(TileMapQuadrant *p_quadrant);
+	void _physics_draw_quadrant_debug(TileMapQuadrant *p_quadrant);
+
+	void _navigation_notification(int p_what);
+	void _navigation_update_dirty_quadrants(SelfList<TileMapQuadrant>::List &r_dirty_quadrant_list);
+	void _navigation_cleanup_quadrant(TileMapQuadrant *p_quadrant);
+	void _navigation_draw_quadrant_debug(TileMapQuadrant *p_quadrant);
+
+	void _scenes_update_dirty_quadrants(SelfList<TileMapQuadrant>::List &r_dirty_quadrant_list);
+	void _scenes_cleanup_quadrant(TileMapQuadrant *p_quadrant);
+	void _scenes_draw_quadrant_debug(TileMapQuadrant *p_quadrant);
+
 	// Set and get tiles from data arrays.
-	void _set_tile_data(const Vector<int> &p_data);
-	Vector<int> _get_tile_data() const;
+	void _set_tile_data(int p_layer, const Vector<int> &p_data);
+	Vector<int> _get_tile_data(int p_layer) const;
 
 	void _tile_set_changed();
 
@@ -258,27 +307,45 @@ public:
 	void set_quadrant_size(int p_size);
 	int get_quadrant_size() const;
 
+	static void draw_tile(RID p_canvas_item, Vector2i p_position, const Ref<TileSet> p_tile_set, int p_atlas_source_id, Vector2i p_atlas_coords, int p_alternative_tile, Color p_modulation = Color(1.0, 1.0, 1.0, 1.0));
+
+	// Layers management.
+	void set_layers_count(int p_layers_count);
+	int get_layers_count() const;
+	void set_layer_name(int p_layer, String p_name);
+	String get_layer_name(int p_layer) const;
+	void set_layer_enabled(int p_layer, bool p_visible);
+	bool is_layer_enabled(int p_layer) const;
+	void set_layer_y_sort_enabled(int p_layer, bool p_enabled);
+	bool is_layer_y_sort_enabled(int p_layer) const;
+	void set_layer_y_sort_origin(int p_layer, int p_y_sort_origin);
+	int get_layer_y_sort_origin(int p_layer) const;
+	void set_layer_z_index(int p_layer, int p_z_index);
+	int get_layer_z_index(int p_layer) const;
+	void set_selected_layer(int p_layer_id); // For editor use.
+	int get_selected_layer() const;
+
 	void set_collision_visibility_mode(VisibilityMode p_show_collision);
 	VisibilityMode get_collision_visibility_mode();
 
 	void set_navigation_visibility_mode(VisibilityMode p_show_navigation);
 	VisibilityMode get_navigation_visibility_mode();
 
-	void set_cell(const Vector2i &p_coords, int p_source_id = -1, const Vector2i p_atlas_coords = TileSetSource::INVALID_ATLAS_COORDS, int p_alternative_tile = TileSetSource::INVALID_TILE_ALTERNATIVE);
-	int get_cell_source_id(const Vector2i &p_coords, bool p_use_proxies = false) const;
-	Vector2i get_cell_atlas_coords(const Vector2i &p_coords, bool p_use_proxies = false) const;
-	int get_cell_alternative_tile(const Vector2i &p_coords, bool p_use_proxies = false) const;
+	void set_cell(int p_layer, const Vector2i &p_coords, int p_source_id = -1, const Vector2i p_atlas_coords = TileSetSource::INVALID_ATLAS_COORDS, int p_alternative_tile = TileSetSource::INVALID_TILE_ALTERNATIVE);
+	int get_cell_source_id(int p_layer, const Vector2i &p_coords, bool p_use_proxies = false) const;
+	Vector2i get_cell_atlas_coords(int p_layer, const Vector2i &p_coords, bool p_use_proxies = false) const;
+	int get_cell_alternative_tile(int p_layer, const Vector2i &p_coords, bool p_use_proxies = false) const;
 
-	TileMapPattern *get_pattern(TypedArray<Vector2i> p_coords_array);
+	TileMapPattern *get_pattern(int p_layer, TypedArray<Vector2i> p_coords_array);
 	Vector2i map_pattern(Vector2i p_position_in_tilemap, Vector2i p_coords_in_pattern, const TileMapPattern *p_pattern);
-	void set_pattern(Vector2i p_position, const TileMapPattern *p_pattern);
+	void set_pattern(int p_layer, Vector2i p_position, const TileMapPattern *p_pattern);
 
 	// Not exposed to users
-	TileMapCell get_cell(const Vector2i &p_coords, bool p_use_proxies = false) const;
-	Map<Vector2i, TileMapQuadrant> &get_quadrant_map();
-	int get_effective_quadrant_size() const;
+	TileMapCell get_cell(int p_layer, const Vector2i &p_coords, bool p_use_proxies = false) const;
+	Map<Vector2i, TileMapQuadrant> *get_quadrant_map(int p_layer);
+	int get_effective_quadrant_size(int p_layer) const;
+	//---
 
-	void update_dirty_quadrants();
 	virtual void set_y_sort_enabled(bool p_enable) override;
 
 	Vector2 map_to_world(const Vector2i &p_pos) const;
@@ -287,7 +354,7 @@ public:
 	bool is_existing_neighbor(TileSet::CellNeighbor p_cell_neighbor) const;
 	Vector2i get_neighbor_cell(const Vector2i &p_coords, TileSet::CellNeighbor p_cell_neighbor) const;
 
-	TypedArray<Vector2i> get_used_cells() const;
+	TypedArray<Vector2i> get_used_cells(int p_layer) const;
 	Rect2 get_used_rect(); // Not const because of cache
 
 	// Override some methods of the CanvasItem class to pass the changes to the quadrants CanvasItems
@@ -297,13 +364,19 @@ public:
 	virtual void set_texture_filter(CanvasItem::TextureFilter p_texture_filter) override;
 	virtual void set_texture_repeat(CanvasItem::TextureRepeat p_texture_repeat) override;
 
+	// Fixing a nclearing methods.
 	void fix_invalid_tiles();
+
+	void clear_layer(int p_layer);
 	void clear();
 
 	// Helpers
 	TypedArray<Vector2i> get_surrounding_tiles(Vector2i coords);
 	void draw_cells_outline(Control *p_control, Set<Vector2i> p_cells, Color p_color, Transform2D p_transform = Transform2D());
 
+	// Configuration warnings.
+	TypedArray<String> get_configuration_warnings() const override;
+
 	TileMap();
 	~TileMap();
 };
diff --git a/scene/3d/path_3d.cpp b/scene/3d/path_3d.cpp
index 6af2e7f879..490cf5fe67 100644
--- a/scene/3d/path_3d.cpp
+++ b/scene/3d/path_3d.cpp
@@ -100,11 +100,18 @@ void PathFollow3D::_update_transform(bool p_update_xyz_rot) {
 	}
 	float bi = c->get_bake_interval();
 	float o_next = offset + bi;
+	float o_prev = offset - bi;
 
 	if (loop) {
 		o_next = Math::fposmod(o_next, bl);
-	} else if (rotation_mode == ROTATION_ORIENTED && o_next >= bl) {
-		o_next = bl;
+		o_prev = Math::fposmod(o_prev, bl);
+	} else if (rotation_mode == ROTATION_ORIENTED) {
+		if (o_next >= bl) {
+			o_next = bl;
+		}
+		if (o_prev <= 0) {
+			o_prev = 0;
+		}
 	}
 
 	Vector3 pos = c->interpolate_baked(offset, cubic);
@@ -113,7 +120,12 @@ void PathFollow3D::_update_transform(bool p_update_xyz_rot) {
 	// will be replaced by "Vector3(h_offset, v_offset, 0)" where it was formerly used
 
 	if (rotation_mode == ROTATION_ORIENTED) {
-		Vector3 forward = c->interpolate_baked(o_next, cubic) - pos;
+		Vector3 forward = c->interpolate_baked(o_next, cubic);
+
+		// Try with the previous position
+		if (forward.length_squared() < CMP_EPSILON2) {
+			forward = pos - c->interpolate_baked(o_prev, cubic);
+		}
 
 		if (forward.length_squared() < CMP_EPSILON2) {
 			forward = Vector3(0, 0, 1);
diff --git a/scene/3d/physics_body_3d.cpp b/scene/3d/physics_body_3d.cpp
index 93ecb2cd3a..100e3563a3 100644
--- a/scene/3d/physics_body_3d.cpp
+++ b/scene/3d/physics_body_3d.cpp
@@ -1347,7 +1347,7 @@ int CharacterBody3D::get_max_slides() const {
 }
 
 void CharacterBody3D::set_max_slides(int p_max_slides) {
-	ERR_FAIL_COND(p_max_slides > 0);
+	ERR_FAIL_COND(p_max_slides < 1);
 	max_slides = p_max_slides;
 }
 
@@ -1422,7 +1422,7 @@ void CharacterBody3D::_bind_methods() {
 	ADD_PROPERTY(PropertyInfo(Variant::VECTOR3, "linear_velocity"), "set_linear_velocity", "get_linear_velocity");
 	ADD_PROPERTY(PropertyInfo(Variant::BOOL, "stop_on_slope"), "set_stop_on_slope_enabled", "is_stop_on_slope_enabled");
 	ADD_PROPERTY(PropertyInfo(Variant::BOOL, "infinite_inertia"), "set_infinite_inertia_enabled", "is_infinite_inertia_enabled");
-	ADD_PROPERTY(PropertyInfo(Variant::INT, "max_slides"), "set_max_slides", "get_max_slides");
+	ADD_PROPERTY(PropertyInfo(Variant::INT, "max_slides", PROPERTY_HINT_RANGE, "1,8,1,or_greater"), "set_max_slides", "get_max_slides");
 	ADD_PROPERTY(PropertyInfo(Variant::FLOAT, "floor_max_angle", PROPERTY_HINT_RANGE, "0,180,0.1,radians"), "set_floor_max_angle", "get_floor_max_angle");
 	ADD_PROPERTY(PropertyInfo(Variant::VECTOR3, "snap"), "set_snap", "get_snap");
 	ADD_PROPERTY(PropertyInfo(Variant::VECTOR3, "up_direction"), "set_up_direction", "get_up_direction");
diff --git a/scene/animation/tween.cpp b/scene/animation/tween.cpp
index a57e986877..542011618d 100644
--- a/scene/animation/tween.cpp
+++ b/scene/animation/tween.cpp
@@ -140,6 +140,8 @@ bool Tween::is_valid() {
 }
 
 Ref<Tween> Tween::bind_node(Node *p_node) {
+	ERR_FAIL_NULL_V(p_node, this);
+
 	bound_node = p_node->get_instance_id();
 	is_bound = true;
 	return this;
diff --git a/scene/gui/code_edit.cpp b/scene/gui/code_edit.cpp
index be5e0bf4e5..32922f609d 100644
--- a/scene/gui/code_edit.cpp
+++ b/scene/gui/code_edit.cpp
@@ -72,13 +72,34 @@ void CodeEdit::_notification(int p_what) {
 			code_completion_background_color = get_theme_color(SNAME("completion_background_color"));
 			code_completion_selected_color = get_theme_color(SNAME("completion_selected_color"));
 			code_completion_existing_color = get_theme_color(SNAME("completion_existing_color"));
+
+			line_length_guideline_color = get_theme_color(SNAME("line_length_guideline_color"));
 		} break;
 		case NOTIFICATION_DRAW: {
 			RID ci = get_canvas_item();
+			const Size2 size = get_size();
 			const bool caret_visible = is_caret_visible();
 			const bool rtl = is_layout_rtl();
 			const int row_height = get_row_height();
 
+			if (line_length_guideline_columns.size() > 0) {
+				const int xmargin_beg = cache.style_normal->get_margin(SIDE_LEFT) + get_total_gutter_width();
+				const int xmargin_end = size.width - cache.style_normal->get_margin(SIDE_RIGHT) - (is_drawing_minimap() ? get_minimap_width() : 0);
+				const int char_size = (int)cache.font->get_char_size('0', 0, cache.font_size).width;
+
+				for (int i = 0; i < line_length_guideline_columns.size(); i++) {
+					const int xoffset = xmargin_beg + char_size * (int)line_length_guideline_columns[i] - get_h_scroll();
+					if (xoffset > xmargin_beg && xoffset < xmargin_end) {
+						Color guideline_color = (i == 0) ? line_length_guideline_color : line_length_guideline_color * Color(1, 1, 1, 0.5);
+						if (rtl) {
+							RenderingServer::get_singleton()->canvas_item_add_line(ci, Point2(size.width - xoffset, 0), Point2(size.width - xoffset, size.height), guideline_color);
+							continue;
+						}
+						RenderingServer::get_singleton()->canvas_item_add_line(ci, Point2(xoffset, 0), Point2(xoffset, size.height), guideline_color);
+					}
+				}
+			}
+
 			bool code_completion_below = false;
 			if (caret_visible && code_completion_active && code_completion_options.size() > 0) {
 				Ref<StyleBox> csb = get_theme_stylebox(SNAME("completion"));
@@ -204,8 +225,15 @@ void CodeEdit::_notification(int p_what) {
 					round_ofs = round_ofs.round();
 					draw_string(font, round_ofs, line.replace(String::chr(0xFFFF), ""), HALIGN_LEFT, -1, cache.font_size, font_color);
 					if (end > 0) {
-						Vector2 b = hint_ofs + sb->get_offset() + Vector2(begin, font_height + font_height * i + line_spacing - 1);
-						draw_line(b, b + Vector2(end - begin, 0), font_color);
+						// Draw an underline for the currently edited function parameter.
+						const Vector2 b = hint_ofs + sb->get_offset() + Vector2(begin, font_height + font_height * i + line_spacing);
+						draw_line(b, b + Vector2(end - begin, 0), font_color, 2);
+
+						// Draw a translucent text highlight as well.
+						const Rect2 highlight_rect = Rect2(
+								hint_ofs + sb->get_offset() + Vector2(begin, 0),
+								Vector2(end - begin, font_height));
+						draw_rect(highlight_rect, font_color * Color(1, 1, 1, 0.2));
 					}
 					line_spacing += cache.line_spacing;
 				}
@@ -278,6 +306,39 @@ void CodeEdit::_gui_input(const Ref<InputEvent> &p_gui_input) {
 					}
 				}
 			}
+		} else {
+			if (mb->get_button_index() == MOUSE_BUTTON_LEFT) {
+				if (mb->is_command_pressed() && symbol_lookup_word != String()) {
+					Vector2i mpos = mb->get_position();
+					if (is_layout_rtl()) {
+						mpos.x = get_size().x - mpos.x;
+					}
+					int line, col;
+					_get_mouse_pos(Point2i(mpos.x, mpos.y), line, col);
+
+					emit_signal(SNAME("symbol_lookup"), symbol_lookup_word, line, col);
+					return;
+				}
+			}
+		}
+	}
+
+	Ref<InputEventMouseMotion> mm = p_gui_input;
+	if (mm.is_valid()) {
+		Vector2i mpos = mm->get_position();
+		if (is_layout_rtl()) {
+			mpos.x = get_size().x - mpos.x;
+		}
+
+		if (symbol_lookup_on_click_enabled) {
+			if (mm->is_command_pressed() && mm->get_button_mask() == 0 && !is_dragging_cursor()) {
+				symbol_lookup_new_word = get_word_at_pos(mpos);
+				if (symbol_lookup_new_word != symbol_lookup_word) {
+					emit_signal(SNAME("symbol_validate"), symbol_lookup_new_word);
+				}
+			} else {
+				set_symbol_lookup_word_as_valid(false);
+			}
 		}
 	}
 
@@ -288,6 +349,25 @@ void CodeEdit::_gui_input(const Ref<InputEvent> &p_gui_input) {
 		return;
 	}
 
+	/* Ctrl + Hover symbols */
+#ifdef OSX_ENABLED
+	if (k->get_keycode() == KEY_META) {
+#else
+	if (k->get_keycode() == KEY_CTRL) {
+#endif
+		if (symbol_lookup_on_click_enabled) {
+			if (k->is_pressed() && !is_dragging_cursor()) {
+				symbol_lookup_new_word = get_word_at_pos(_get_local_mouse_pos());
+				if (symbol_lookup_new_word != symbol_lookup_word) {
+					emit_signal(SNAME("symbol_validate"), symbol_lookup_new_word);
+				}
+			} else {
+				set_symbol_lookup_word_as_valid(false);
+			}
+		}
+		return;
+	}
+
 	/* If a modifier has been pressed, and nothing else, return. */
 	if (!k->is_pressed() || k->get_keycode() == KEY_CTRL || k->get_keycode() == KEY_ALT || k->get_keycode() == KEY_SHIFT || k->get_keycode() == KEY_META) {
 		return;
@@ -437,7 +517,12 @@ void CodeEdit::_gui_input(const Ref<InputEvent> &p_gui_input) {
 	}
 }
 
+/* General overrides */
 Control::CursorShape CodeEdit::get_cursor_shape(const Point2 &p_pos) const {
+	if (symbol_lookup_word != String()) {
+		return CURSOR_POINTING_HAND;
+	}
+
 	if ((code_completion_active && code_completion_rect.has_point(p_pos)) || (is_readonly() && (!is_selecting_enabled() || get_line_count() == 0))) {
 		return CURSOR_ARROW;
 	}
@@ -459,6 +544,58 @@ Control::CursorShape CodeEdit::get_cursor_shape(const Point2 &p_pos) const {
 	return TextEdit::get_cursor_shape(p_pos);
 }
 
+void CodeEdit::handle_unicode_input(uint32_t p_unicode) {
+	bool had_selection = is_selection_active();
+	if (had_selection) {
+		begin_complex_operation();
+		delete_selection();
+	}
+
+	// Remove the old character if in insert mode and no selection.
+	if (is_insert_mode() && !had_selection) {
+		begin_complex_operation();
+
+		// Make sure we don't try and remove empty space.
+		if (cursor_get_column() < get_line(cursor_get_line()).length()) {
+			_remove_text(cursor_get_line(), cursor_get_column(), cursor_get_line(), cursor_get_column() + 1);
+		}
+	}
+
+	const char32_t chr[2] = { (char32_t)p_unicode, 0 };
+
+	if (auto_brace_completion_enabled) {
+		int cl = cursor_get_line();
+		int cc = cursor_get_column();
+		int caret_move_offset = 1;
+
+		int post_brace_pair = cc < get_line(cl).length() ? _get_auto_brace_pair_close_at_pos(cl, cc) : -1;
+
+		if (has_string_delimiter(chr) && cc > 0 && _is_char(get_line(cl)[cc - 1]) && post_brace_pair == -1) {
+			insert_text_at_cursor(chr);
+		} else if (cc < get_line(cl).length() && _is_char(get_line(cl)[cc])) {
+			insert_text_at_cursor(chr);
+		} else if (post_brace_pair != -1 && auto_brace_completion_pairs[post_brace_pair].close_key[0] == chr[0]) {
+			caret_move_offset = auto_brace_completion_pairs[post_brace_pair].close_key.length();
+		} else if (is_in_comment(cl, cc) != -1 || (is_in_string(cl, cc) != -1 && has_string_delimiter(chr))) {
+			insert_text_at_cursor(chr);
+		} else {
+			insert_text_at_cursor(chr);
+
+			int pre_brace_pair = _get_auto_brace_pair_open_at_pos(cl, cc + 1);
+			if (pre_brace_pair != -1) {
+				insert_text_at_cursor(auto_brace_completion_pairs[pre_brace_pair].close_key);
+			}
+		}
+		cursor_set_column(cc + caret_move_offset);
+	} else {
+		insert_text_at_cursor(chr);
+	}
+
+	if ((is_insert_mode() && !had_selection) || (had_selection)) {
+		end_complex_operation();
+	}
+}
+
 /* Indent management */
 void CodeEdit::set_indent_size(const int p_size) {
 	ERR_FAIL_COND_MSG(p_size <= 0, "Indend size must be greater than 0.");
@@ -527,13 +664,13 @@ void CodeEdit::do_indent() {
 	}
 
 	if (!indent_using_spaces) {
-		_insert_text_at_cursor("\t");
+		insert_text_at_cursor("\t");
 		return;
 	}
 
 	int spaces_to_add = _calculate_spaces_till_next_right_indent(cursor_get_column());
 	if (spaces_to_add > 0) {
-		_insert_text_at_cursor(String(" ").repeat(spaces_to_add));
+		insert_text_at_cursor(String(" ").repeat(spaces_to_add));
 	}
 }
 
@@ -713,34 +850,6 @@ int CodeEdit::_calculate_spaces_till_next_right_indent(int p_column) const {
 	return indent_size - p_column % indent_size;
 }
 
-/* TODO: remove once brace completion is refactored. */
-static char32_t _get_right_pair_symbol(char32_t c) {
-	if (c == '"') {
-		return '"';
-	}
-	if (c == '\'') {
-		return '\'';
-	}
-	if (c == '(') {
-		return ')';
-	}
-	if (c == '[') {
-		return ']';
-	}
-	if (c == '{') {
-		return '}';
-	}
-	return 0;
-}
-
-static bool _is_pair_left_symbol(char32_t c) {
-	return c == '"' ||
-		   c == '\'' ||
-		   c == '(' ||
-		   c == '[' ||
-		   c == '{';
-}
-
 void CodeEdit::_new_line(bool p_split_current_line, bool p_above) {
 	if (is_readonly()) {
 		return;
@@ -803,9 +912,8 @@ void CodeEdit::_new_line(bool p_split_current_line, bool p_above) {
 		if (should_indent) {
 			ins += indent_text;
 
-			/* TODO: Change when brace completion is refactored. */
-			char32_t closing_char = _get_right_pair_symbol(indent_char);
-			if (closing_char != 0 && closing_char == line[cc]) {
+			String closing_pair = get_auto_brace_completion_close_key(String::chr(indent_char));
+			if (!closing_pair.is_empty() && line.find(closing_pair, cc) == cc) {
 				/* No need to move the brace below if we are not taking the text with us. */
 				if (p_split_current_line) {
 					brace_indent = true;
@@ -873,12 +981,20 @@ void CodeEdit::backspace() {
 
 	merge_gutters(cl, prev_line);
 
-	/* TODO: Change when brace completion is refactored. */
-	if (auto_brace_completion_enabled && cc > 0 && _is_pair_left_symbol(get_line(cl)[cc - 1])) {
-		_consume_backspace_for_pair_symbol(prev_line, prev_column);
-		cursor_set_line(prev_line, false, true);
-		cursor_set_column(prev_column);
-		return;
+	if (auto_brace_completion_enabled && cc > 0) {
+		int idx = _get_auto_brace_pair_open_at_pos(cl, cc);
+		if (idx != -1) {
+			prev_column = cc - auto_brace_completion_pairs[idx].open_key.length();
+
+			if (_get_auto_brace_pair_close_at_pos(cl, cc) == idx) {
+				_remove_text(prev_line, prev_column, cl, cc + auto_brace_completion_pairs[idx].close_key.length());
+			} else {
+				_remove_text(prev_line, prev_column, cl, cc);
+			}
+			cursor_set_line(prev_line, false, true);
+			cursor_set_column(prev_column);
+			return;
+		}
 	}
 
 	/* For space indentation we need to do a simple unindent if there are no chars to the left, acting in the */
@@ -896,6 +1012,93 @@ void CodeEdit::backspace() {
 	cursor_set_column(prev_column);
 }
 
+/* Auto brace completion */
+void CodeEdit::set_auto_brace_completion_enabled(bool p_enabled) {
+	auto_brace_completion_enabled = p_enabled;
+}
+
+bool CodeEdit::is_auto_brace_completion_enabled() const {
+	return auto_brace_completion_enabled;
+}
+
+void CodeEdit::set_highlight_matching_braces_enabled(bool p_enabled) {
+	highlight_matching_braces_enabled = p_enabled;
+	update();
+}
+
+bool CodeEdit::is_highlight_matching_braces_enabled() const {
+	return highlight_matching_braces_enabled;
+}
+
+void CodeEdit::add_auto_brace_completion_pair(const String &p_open_key, const String &p_close_key) {
+	ERR_FAIL_COND_MSG(p_open_key.is_empty(), "auto brace completion open key cannot be empty");
+	ERR_FAIL_COND_MSG(p_close_key.is_empty(), "auto brace completion close key cannot be empty");
+
+	for (int i = 0; i < p_open_key.length(); i++) {
+		ERR_FAIL_COND_MSG(!is_symbol(p_open_key[i]), "auto brace completion open key must be a symbol");
+	}
+	for (int i = 0; i < p_close_key.length(); i++) {
+		ERR_FAIL_COND_MSG(!is_symbol(p_close_key[i]), "auto brace completion close key must be a symbol");
+	}
+
+	int at = 0;
+	for (int i = 0; i < auto_brace_completion_pairs.size(); i++) {
+		ERR_FAIL_COND_MSG(auto_brace_completion_pairs[i].open_key == p_open_key, "auto brace completion open key '" + p_open_key + "' already exists.");
+		if (p_open_key.length() < auto_brace_completion_pairs[i].open_key.length()) {
+			at++;
+		}
+	}
+
+	BracePair brace_pair;
+	brace_pair.open_key = p_open_key;
+	brace_pair.close_key = p_close_key;
+	auto_brace_completion_pairs.insert(at, brace_pair);
+}
+
+void CodeEdit::set_auto_brace_completion_pairs(const Dictionary &p_auto_brace_completion_pairs) {
+	auto_brace_completion_pairs.clear();
+
+	Array keys = p_auto_brace_completion_pairs.keys();
+	for (int i = 0; i < keys.size(); i++) {
+		add_auto_brace_completion_pair(keys[i], p_auto_brace_completion_pairs[keys[i]]);
+	}
+}
+
+Dictionary CodeEdit::get_auto_brace_completion_pairs() const {
+	Dictionary brace_pairs;
+	for (int i = 0; i < auto_brace_completion_pairs.size(); i++) {
+		brace_pairs[auto_brace_completion_pairs[i].open_key] = auto_brace_completion_pairs[i].close_key;
+	}
+	return brace_pairs;
+}
+
+bool CodeEdit::has_auto_brace_completion_open_key(const String &p_open_key) const {
+	for (int i = 0; i < auto_brace_completion_pairs.size(); i++) {
+		if (auto_brace_completion_pairs[i].open_key == p_open_key) {
+			return true;
+		}
+	}
+	return false;
+}
+
+bool CodeEdit::has_auto_brace_completion_close_key(const String &p_close_key) const {
+	for (int i = 0; i < auto_brace_completion_pairs.size(); i++) {
+		if (auto_brace_completion_pairs[i].close_key == p_close_key) {
+			return true;
+		}
+	}
+	return false;
+}
+
+String CodeEdit::get_auto_brace_completion_close_key(const String &p_open_key) const {
+	for (int i = 0; i < auto_brace_completion_pairs.size(); i++) {
+		if (auto_brace_completion_pairs[i].open_key == p_open_key) {
+			return auto_brace_completion_pairs[i].close_key;
+		}
+	}
+	return String();
+}
+
 /* Main Gutter */
 void CodeEdit::_update_draw_main_gutter() {
 	set_gutter_draw(main_gutter, draw_breakpoints || draw_bookmarks || draw_executing_lines);
@@ -1700,35 +1903,40 @@ void CodeEdit::confirm_code_completion(bool p_replace) {
 		insert_text_at_cursor(insert_text.substr(matching_chars));
 	}
 
-	/* TODO: merge with autobrace completion, when in CodeEdit. */
 	/* Handle merging of symbols eg strings, brackets. */
 	const String line = get_line(caret_line);
 	char32_t next_char = line[cursor_get_column()];
 	char32_t last_completion_char = insert_text[insert_text.length() - 1];
 	char32_t last_completion_char_display = display_text[display_text.length() - 1];
 
-	if ((last_completion_char == '"' || last_completion_char == '\'') && (last_completion_char == next_char || last_completion_char_display == next_char)) {
+	int pre_brace_pair = cursor_get_column() > 0 ? _get_auto_brace_pair_open_at_pos(caret_line, cursor_get_column()) : -1;
+	int post_brace_pair = cursor_get_column() < get_line(caret_line).length() ? _get_auto_brace_pair_close_at_pos(caret_line, cursor_get_column()) : -1;
+
+	if (post_brace_pair != -1 && (last_completion_char == next_char || last_completion_char_display == next_char)) {
 		_remove_text(caret_line, cursor_get_column(), caret_line, cursor_get_column() + 1);
 	}
 
-	if (last_completion_char == '(') {
-		if (next_char == last_completion_char) {
-			_remove_text(caret_line, cursor_get_column() - 1, caret_line, cursor_get_column());
-		} else if (auto_brace_completion_enabled) {
-			insert_text_at_cursor(")");
-			cursor_set_column(cursor_get_column() - 1);
-		}
-	} else if (last_completion_char == ')' && next_char == '(') {
-		_remove_text(caret_line, cursor_get_column() - 2, caret_line, cursor_get_column());
-		if (line[cursor_get_column() + 1] != ')') {
-			cursor_set_column(cursor_get_column() - 1);
+	if (pre_brace_pair != -1 && pre_brace_pair != post_brace_pair && (last_completion_char == next_char || last_completion_char_display == next_char)) {
+		_remove_text(caret_line, cursor_get_column(), caret_line, cursor_get_column() + 1);
+	} else if (auto_brace_completion_enabled && pre_brace_pair != -1 && post_brace_pair == -1) {
+		insert_text_at_cursor(auto_brace_completion_pairs[pre_brace_pair].close_key);
+		cursor_set_column(cursor_get_column() - auto_brace_completion_pairs[pre_brace_pair].close_key.length());
+	}
+
+	if (pre_brace_pair == -1 && post_brace_pair == -1 && cursor_get_column() > 0 && cursor_get_column() < get_line(caret_line).length()) {
+		pre_brace_pair = _get_auto_brace_pair_open_at_pos(caret_line, cursor_get_column() + 1);
+		if (pre_brace_pair == _get_auto_brace_pair_close_at_pos(caret_line, cursor_get_column() - 1)) {
+			_remove_text(caret_line, cursor_get_column() - 2, caret_line, cursor_get_column());
+			if (_get_auto_brace_pair_close_at_pos(caret_line, cursor_get_column() - 1) != pre_brace_pair) {
+				cursor_set_column(cursor_get_column() - 1);
+			}
 		}
 	}
 
 	end_complex_operation();
 
 	cancel_code_completion();
-	if (last_completion_char == '(') {
+	if (code_completion_prefixes.has(String::chr(last_completion_char))) {
 		request_code_completion();
 	}
 }
@@ -1742,6 +1950,58 @@ void CodeEdit::cancel_code_completion() {
 	update();
 }
 
+/* Line length guidelines */
+void CodeEdit::set_line_length_guidelines(TypedArray<int> p_guideline_columns) {
+	line_length_guideline_columns = p_guideline_columns;
+	update();
+}
+
+TypedArray<int> CodeEdit::get_line_length_guidelines() const {
+	return line_length_guideline_columns;
+}
+
+/* Symbol lookup */
+void CodeEdit::set_symbol_lookup_on_click_enabled(bool p_enabled) {
+	symbol_lookup_on_click_enabled = p_enabled;
+	set_symbol_lookup_word_as_valid(false);
+}
+
+bool CodeEdit::is_symbol_lookup_on_click_enabled() const {
+	return symbol_lookup_on_click_enabled;
+}
+
+String CodeEdit::get_text_for_symbol_lookup() {
+	int line, col;
+	Point2i mp = _get_local_mouse_pos();
+	_get_mouse_pos(mp, line, col);
+
+	StringBuilder lookup_text;
+	const int text_size = get_line_count();
+	for (int i = 0; i < text_size; i++) {
+		String text = get_line(i);
+
+		if (i == line) {
+			lookup_text += text.substr(0, col);
+			/* Not unicode, represents the cursor. */
+			lookup_text += String::chr(0xFFFF);
+			lookup_text += text.substr(col, text.size());
+		} else {
+			lookup_text += text;
+		}
+
+		if (i != text_size - 1) {
+			lookup_text += "\n";
+		}
+	}
+	return lookup_text.as_string();
+}
+
+void CodeEdit::set_symbol_lookup_word_as_valid(bool p_valid) {
+	symbol_lookup_word = p_valid ? symbol_lookup_new_word : "";
+	symbol_lookup_new_word = "";
+	_set_symbol_lookup_word(symbol_lookup_word);
+}
+
 void CodeEdit::_bind_methods() {
 	/* Indent management */
 	ClassDB::bind_method(D_METHOD("set_indent_size", "size"), &CodeEdit::set_indent_size);
@@ -1762,6 +2022,22 @@ void CodeEdit::_bind_methods() {
 	ClassDB::bind_method(D_METHOD("indent_lines"), &CodeEdit::indent_lines);
 	ClassDB::bind_method(D_METHOD("unindent_lines"), &CodeEdit::unindent_lines);
 
+	/* Auto brace completion */
+	ClassDB::bind_method(D_METHOD("set_auto_brace_completion_enabled", "enable"), &CodeEdit::set_auto_brace_completion_enabled);
+	ClassDB::bind_method(D_METHOD("is_auto_brace_completion_enabled"), &CodeEdit::is_auto_brace_completion_enabled);
+
+	ClassDB::bind_method(D_METHOD("set_highlight_matching_braces_enabled", "enable"), &CodeEdit::set_highlight_matching_braces_enabled);
+	ClassDB::bind_method(D_METHOD("is_highlight_matching_braces_enabled"), &CodeEdit::is_highlight_matching_braces_enabled);
+
+	ClassDB::bind_method(D_METHOD("add_auto_brace_completion_pair", "start_key", "end_key"), &CodeEdit::add_auto_brace_completion_pair);
+	ClassDB::bind_method(D_METHOD("set_auto_brace_completion_pairs", "pairs"), &CodeEdit::set_auto_brace_completion_pairs);
+	ClassDB::bind_method(D_METHOD("get_auto_brace_completion_pairs"), &CodeEdit::get_auto_brace_completion_pairs);
+
+	ClassDB::bind_method(D_METHOD("has_auto_brace_completion_open_key", "open_key"), &CodeEdit::has_auto_brace_completion_open_key);
+	ClassDB::bind_method(D_METHOD("has_auto_brace_completion_close_key", "close_key"), &CodeEdit::has_auto_brace_completion_close_key);
+
+	ClassDB::bind_method(D_METHOD("get_auto_brace_completion_close_key", "open_key"), &CodeEdit::get_auto_brace_completion_close_key);
+
 	/* Main Gutter */
 	ClassDB::bind_method(D_METHOD("_main_gutter_draw_callback"), &CodeEdit::_main_gutter_draw_callback);
 
@@ -1890,19 +2166,35 @@ void CodeEdit::_bind_methods() {
 	BIND_VMETHOD(MethodInfo("_request_code_completion", PropertyInfo(Variant::BOOL, "force")));
 	BIND_VMETHOD(MethodInfo(Variant::ARRAY, "_filter_code_completion_candidates", PropertyInfo(Variant::ARRAY, "candidates")));
 
+	/* Line length guidelines */
+	ClassDB::bind_method(D_METHOD("set_line_length_guidelines", "guideline_columns"), &CodeEdit::set_line_length_guidelines);
+	ClassDB::bind_method(D_METHOD("get_line_length_guidelines"), &CodeEdit::get_line_length_guidelines);
+
+	/* Symbol lookup */
+	ClassDB::bind_method(D_METHOD("set_symbol_lookup_on_click_enabled", "enable"), &CodeEdit::set_symbol_lookup_on_click_enabled);
+	ClassDB::bind_method(D_METHOD("is_symbol_lookup_on_click_enabled"), &CodeEdit::is_symbol_lookup_on_click_enabled);
+
+	ClassDB::bind_method(D_METHOD("get_text_for_symbol_lookup"), &CodeEdit::get_text_for_symbol_lookup);
+
+	ClassDB::bind_method(D_METHOD("set_symbol_lookup_word_as_valid", "valid"), &CodeEdit::set_symbol_lookup_word_as_valid);
+
 	/* Inspector */
-	ADD_PROPERTY(PropertyInfo(Variant::BOOL, "draw_breakpoints_gutter"), "set_draw_breakpoints_gutter", "is_drawing_breakpoints_gutter");
+	ADD_PROPERTY(PropertyInfo(Variant::BOOL, "symbol_lookup_on_click"), "set_symbol_lookup_on_click_enabled", "is_symbol_lookup_on_click_enabled");
+	ADD_PROPERTY(PropertyInfo(Variant::BOOL, "line_folding"), "set_line_folding_enabled", "is_line_folding_enabled");
 
-	ADD_PROPERTY(PropertyInfo(Variant::BOOL, "draw_bookmarks"), "set_draw_bookmarks_gutter", "is_drawing_bookmarks_gutter");
+	ADD_PROPERTY(PropertyInfo(Variant::PACKED_INT32_ARRAY, "line_length_guidelines"), "set_line_length_guidelines", "get_line_length_guidelines");
 
-	ADD_PROPERTY(PropertyInfo(Variant::BOOL, "draw_executing_lines"), "set_draw_executing_lines_gutter", "is_drawing_executing_lines_gutter");
+	ADD_GROUP("Gutters", "gutters_");
+	ADD_PROPERTY(PropertyInfo(Variant::BOOL, "gutters_draw_breakpoints_gutter"), "set_draw_breakpoints_gutter", "is_drawing_breakpoints_gutter");
 
-	ADD_PROPERTY(PropertyInfo(Variant::BOOL, "draw_line_numbers"), "set_draw_line_numbers", "is_draw_line_numbers_enabled");
-	ADD_PROPERTY(PropertyInfo(Variant::BOOL, "zero_pad_line_numbers"), "set_line_numbers_zero_padded", "is_line_numbers_zero_padded");
+	ADD_PROPERTY(PropertyInfo(Variant::BOOL, "gutters_draw_bookmarks"), "set_draw_bookmarks_gutter", "is_drawing_bookmarks_gutter");
 
-	ADD_PROPERTY(PropertyInfo(Variant::BOOL, "draw_fold_gutter"), "set_draw_fold_gutter", "is_drawing_fold_gutter");
+	ADD_PROPERTY(PropertyInfo(Variant::BOOL, "gutters_draw_executing_lines"), "set_draw_executing_lines_gutter", "is_drawing_executing_lines_gutter");
 
-	ADD_PROPERTY(PropertyInfo(Variant::BOOL, "line_folding"), "set_line_folding_enabled", "is_line_folding_enabled");
+	ADD_PROPERTY(PropertyInfo(Variant::BOOL, "gutters_draw_line_numbers"), "set_draw_line_numbers", "is_draw_line_numbers_enabled");
+	ADD_PROPERTY(PropertyInfo(Variant::BOOL, "gutters_zero_pad_line_numbers"), "set_line_numbers_zero_padded", "is_line_numbers_zero_padded");
+
+	ADD_PROPERTY(PropertyInfo(Variant::BOOL, "gutters_draw_fold_gutter"), "set_draw_fold_gutter", "is_drawing_fold_gutter");
 
 	ADD_GROUP("Delimiters", "delimiter_");
 	ADD_PROPERTY(PropertyInfo(Variant::PACKED_STRING_ARRAY, "delimiter_strings"), "set_string_delimiters", "get_string_delimiters");
@@ -1918,11 +2210,74 @@ void CodeEdit::_bind_methods() {
 	ADD_PROPERTY(PropertyInfo(Variant::BOOL, "indent_automatic"), "set_auto_indent_enabled", "is_auto_indent_enabled");
 	ADD_PROPERTY(PropertyInfo(Variant::PACKED_STRING_ARRAY, "indent_automatic_prefixes"), "set_auto_indent_prefixes", "get_auto_indent_prefixes");
 
+	ADD_GROUP("Auto brace completion", "auto_brace_completion_");
+	ADD_PROPERTY(PropertyInfo(Variant::BOOL, "auto_brace_completion_enabled"), "set_auto_brace_completion_enabled", "is_auto_brace_completion_enabled");
+	ADD_PROPERTY(PropertyInfo(Variant::BOOL, "auto_brace_completion_highlight_matching"), "set_highlight_matching_braces_enabled", "is_highlight_matching_braces_enabled");
+	ADD_PROPERTY(PropertyInfo(Variant::DICTIONARY, "auto_brace_completion_pairs"), "set_auto_brace_completion_pairs", "get_auto_brace_completion_pairs");
+
 	/* Signals */
+	/* Gutters */
 	ADD_SIGNAL(MethodInfo("breakpoint_toggled", PropertyInfo(Variant::INT, "line")));
+
+	/* Code Completion */
 	ADD_SIGNAL(MethodInfo("request_code_completion"));
+
+	/* Symbol lookup */
+	ADD_SIGNAL(MethodInfo("symbol_lookup", PropertyInfo(Variant::STRING, "symbol"), PropertyInfo(Variant::INT, "line"), PropertyInfo(Variant::INT, "column")));
+	ADD_SIGNAL(MethodInfo("symbol_validate", PropertyInfo(Variant::STRING, "symbol")));
 }
 
+/* Auto brace completion */
+int CodeEdit::_get_auto_brace_pair_open_at_pos(int p_line, int p_col) {
+	const String &line = get_line(p_line);
+
+	/* Should be fast enough, expecting low amount of pairs... */
+	for (int i = 0; i < auto_brace_completion_pairs.size(); i++) {
+		const String &open_key = auto_brace_completion_pairs[i].open_key;
+		if (p_col - open_key.length() < 0) {
+			continue;
+		}
+
+		bool is_match = true;
+		for (int j = 0; j < open_key.length(); j++) {
+			if (line[(p_col - 1) - j] != open_key[(open_key.length() - 1) - j]) {
+				is_match = false;
+				break;
+			}
+		}
+
+		if (is_match) {
+			return i;
+		}
+	}
+	return -1;
+}
+
+int CodeEdit::_get_auto_brace_pair_close_at_pos(int p_line, int p_col) {
+	const String &line = get_line(p_line);
+
+	/* Should be fast enough, expecting low amount of pairs... */
+	for (int i = 0; i < auto_brace_completion_pairs.size(); i++) {
+		if (p_col + auto_brace_completion_pairs[i].close_key.length() > line.length()) {
+			continue;
+		}
+
+		bool is_match = true;
+		for (int j = 0; j < auto_brace_completion_pairs[i].close_key.length(); j++) {
+			if (line[p_col + j] != auto_brace_completion_pairs[i].close_key[j]) {
+				is_match = false;
+				break;
+			}
+		}
+
+		if (is_match) {
+			return i;
+		}
+	}
+	return -1;
+}
+
+/* Gutters */
 void CodeEdit::_gutter_clicked(int p_line, int p_gutter) {
 	if (p_gutter == main_gutter) {
 		if (draw_breakpoints) {
@@ -2547,6 +2902,17 @@ CodeEdit::CodeEdit() {
 	auto_indent_prefixes.insert('[');
 	auto_indent_prefixes.insert('(');
 
+	/* Auto brace completion */
+	add_auto_brace_completion_pair("(", ")");
+	add_auto_brace_completion_pair("{", "}");
+	add_auto_brace_completion_pair("[", "]");
+	add_auto_brace_completion_pair("\"", "\"");
+	add_auto_brace_completion_pair("\'", "\'");
+
+	/* Delimiter traking */
+	add_string_delimiter("\"", "\"", false);
+	add_string_delimiter("\'", "\'", false);
+
 	/* Text Direction */
 	set_layout_direction(LAYOUT_DIRECTION_LTR);
 	set_text_direction(TEXT_DIRECTION_LTR);
diff --git a/scene/gui/code_edit.h b/scene/gui/code_edit.h
index 25b518402b..72fdc6e787 100644
--- a/scene/gui/code_edit.h
+++ b/scene/gui/code_edit.h
@@ -66,6 +66,19 @@ private:
 
 	void _new_line(bool p_split_current_line = true, bool p_above = false);
 
+	/* Auto brace completion */
+	bool auto_brace_completion_enabled = false;
+
+	/* BracePair open_key must be uniquie and ordered by length. */
+	struct BracePair {
+		String open_key = "";
+		String close_key = "";
+	};
+	Vector<BracePair> auto_brace_completion_pairs;
+
+	int _get_auto_brace_pair_open_at_pos(int p_line, int p_col);
+	int _get_auto_brace_pair_close_at_pos(int p_line, int p_col);
+
 	/* Main Gutter */
 	enum MainGutterType {
 		MAIN_GUTTER_BREAKPOINT = 0x01,
@@ -112,7 +125,7 @@ private:
 	void _update_gutter_indexes();
 
 	/* Line Folding */
-	bool line_folding_enabled = true;
+	bool line_folding_enabled = false;
 
 	/* Delimiters */
 	enum DelimiterType {
@@ -210,6 +223,16 @@ private:
 
 	void _lines_edited_from(int p_from_line, int p_to_line);
 
+	/* Line length guidelines */
+	TypedArray<int> line_length_guideline_columns;
+	Color line_length_guideline_color;
+
+	/* Symbol lookup */
+	bool symbol_lookup_on_click_enabled = false;
+
+	String symbol_lookup_new_word = "";
+	String symbol_lookup_word = "";
+
 protected:
 	void _gui_input(const Ref<InputEvent> &p_gui_input) override;
 	void _notification(int p_what);
@@ -217,7 +240,9 @@ protected:
 	static void _bind_methods();
 
 public:
+	/* General overrides */
 	virtual CursorShape get_cursor_shape(const Point2 &p_pos = Point2i()) const override;
+	virtual void handle_unicode_input(uint32_t p_unicode) override;
 
 	/* Indent management */
 	void set_indent_size(const int p_size);
@@ -240,6 +265,22 @@ public:
 
 	virtual void backspace() override;
 
+	/* Auto brace completion */
+	void set_auto_brace_completion_enabled(bool p_enabled);
+	bool is_auto_brace_completion_enabled() const;
+
+	void set_highlight_matching_braces_enabled(bool p_enabled);
+	bool is_highlight_matching_braces_enabled() const;
+
+	void add_auto_brace_completion_pair(const String &p_open_key, const String &p_close_key);
+	void set_auto_brace_completion_pairs(const Dictionary &p_auto_brace_completion_pairs);
+	Dictionary get_auto_brace_completion_pairs() const;
+
+	bool has_auto_brace_completion_open_key(const String &p_open_key) const;
+	bool has_auto_brace_completion_close_key(const String &p_close_key) const;
+
+	String get_auto_brace_completion_close_key(const String &p_open_key) const;
+
 	/* Main Gutter */
 	void set_draw_breakpoints_gutter(bool p_draw);
 	bool is_drawing_breakpoints_gutter() const;
@@ -347,6 +388,18 @@ public:
 	void confirm_code_completion(bool p_replace = false);
 	void cancel_code_completion();
 
+	/* Line length guidelines */
+	void set_line_length_guidelines(TypedArray<int> p_guideline_columns);
+	TypedArray<int> get_line_length_guidelines() const;
+
+	/* Symbol lookup */
+	void set_symbol_lookup_on_click_enabled(bool p_enabled);
+	bool is_symbol_lookup_on_click_enabled() const;
+
+	String get_text_for_symbol_lookup();
+
+	void set_symbol_lookup_word_as_valid(bool p_valid);
+
 	CodeEdit();
 	~CodeEdit();
 };
diff --git a/scene/gui/control.cpp b/scene/gui/control.cpp
index 4179c8b246..a2e6872da6 100644
--- a/scene/gui/control.cpp
+++ b/scene/gui/control.cpp
@@ -222,41 +222,42 @@ Transform2D Control::_get_internal_transform() const {
 
 bool Control::_set(const StringName &p_name, const Variant &p_value) {
 	String name = p_name;
-	if (!name.begins_with("custom")) {
+	// Prefixes "custom_*" are supported for compatibility with 3.x.
+	if (!name.begins_with("theme_override") && !name.begins_with("custom")) {
 		return false;
 	}
 
 	if (p_value.get_type() == Variant::NIL) {
-		if (name.begins_with("custom_icons/")) {
+		if (name.begins_with("theme_override_icons/") || name.begins_with("custom_icons/")) {
 			String dname = name.get_slicec('/', 1);
 			if (data.icon_override.has(dname)) {
 				data.icon_override[dname]->disconnect("changed", callable_mp(this, &Control::_override_changed));
 			}
 			data.icon_override.erase(dname);
 			notification(NOTIFICATION_THEME_CHANGED);
-		} else if (name.begins_with("custom_styles/")) {
+		} else if (name.begins_with("theme_override_styles/") || name.begins_with("custom_styles/")) {
 			String dname = name.get_slicec('/', 1);
 			if (data.style_override.has(dname)) {
 				data.style_override[dname]->disconnect("changed", callable_mp(this, &Control::_override_changed));
 			}
 			data.style_override.erase(dname);
 			notification(NOTIFICATION_THEME_CHANGED);
-		} else if (name.begins_with("custom_fonts/")) {
+		} else if (name.begins_with("theme_override_fonts/") || name.begins_with("custom_fonts/")) {
 			String dname = name.get_slicec('/', 1);
 			if (data.font_override.has(dname)) {
 				data.font_override[dname]->disconnect("changed", callable_mp(this, &Control::_override_changed));
 			}
 			data.font_override.erase(dname);
 			notification(NOTIFICATION_THEME_CHANGED);
-		} else if (name.begins_with("custom_font_sizes/")) {
+		} else if (name.begins_with("theme_override_font_sizes/") || name.begins_with("custom_font_sizes/")) {
 			String dname = name.get_slicec('/', 1);
 			data.font_size_override.erase(dname);
 			notification(NOTIFICATION_THEME_CHANGED);
-		} else if (name.begins_with("custom_colors/")) {
+		} else if (name.begins_with("theme_override_colors/") || name.begins_with("custom_colors/")) {
 			String dname = name.get_slicec('/', 1);
 			data.color_override.erase(dname);
 			notification(NOTIFICATION_THEME_CHANGED);
-		} else if (name.begins_with("custom_constants/")) {
+		} else if (name.begins_with("theme_override_constants/") || name.begins_with("custom_constants/")) {
 			String dname = name.get_slicec('/', 1);
 			data.constant_override.erase(dname);
 			notification(NOTIFICATION_THEME_CHANGED);
@@ -265,22 +266,22 @@ bool Control::_set(const StringName &p_name, const Variant &p_value) {
 		}
 
 	} else {
-		if (name.begins_with("custom_icons/")) {
+		if (name.begins_with("theme_override_icons/") || name.begins_with("custom_icons/")) {
 			String dname = name.get_slicec('/', 1);
 			add_theme_icon_override(dname, p_value);
-		} else if (name.begins_with("custom_styles/")) {
+		} else if (name.begins_with("theme_override_styles/") || name.begins_with("custom_styles/")) {
 			String dname = name.get_slicec('/', 1);
 			add_theme_style_override(dname, p_value);
-		} else if (name.begins_with("custom_fonts/")) {
+		} else if (name.begins_with("theme_override_fonts/") || name.begins_with("custom_fonts/")) {
 			String dname = name.get_slicec('/', 1);
 			add_theme_font_override(dname, p_value);
-		} else if (name.begins_with("custom_font_sizes/")) {
+		} else if (name.begins_with("theme_override_font_sizes/") || name.begins_with("custom_font_sizes/")) {
 			String dname = name.get_slicec('/', 1);
 			add_theme_font_size_override(dname, p_value);
-		} else if (name.begins_with("custom_colors/")) {
+		} else if (name.begins_with("theme_override_colors/") || name.begins_with("custom_colors/")) {
 			String dname = name.get_slicec('/', 1);
 			add_theme_color_override(dname, p_value);
-		} else if (name.begins_with("custom_constants/")) {
+		} else if (name.begins_with("theme_override_constants/") || name.begins_with("custom_constants/")) {
 			String dname = name.get_slicec('/', 1);
 			add_theme_constant_override(dname, p_value);
 		} else {
@@ -307,27 +308,26 @@ void Control::_update_minimum_size() {
 
 bool Control::_get(const StringName &p_name, Variant &r_ret) const {
 	String sname = p_name;
-
-	if (!sname.begins_with("custom")) {
+	if (!sname.begins_with("theme_override")) {
 		return false;
 	}
 
-	if (sname.begins_with("custom_icons/")) {
+	if (sname.begins_with("theme_override_icons/")) {
 		String name = sname.get_slicec('/', 1);
 		r_ret = data.icon_override.has(name) ? Variant(data.icon_override[name]) : Variant();
-	} else if (sname.begins_with("custom_styles/")) {
+	} else if (sname.begins_with("theme_override_styles/")) {
 		String name = sname.get_slicec('/', 1);
 		r_ret = data.style_override.has(name) ? Variant(data.style_override[name]) : Variant();
-	} else if (sname.begins_with("custom_fonts/")) {
+	} else if (sname.begins_with("theme_override_fonts/")) {
 		String name = sname.get_slicec('/', 1);
 		r_ret = data.font_override.has(name) ? Variant(data.font_override[name]) : Variant();
-	} else if (sname.begins_with("custom_font_sizes/")) {
+	} else if (sname.begins_with("theme_override_font_sizes/")) {
 		String name = sname.get_slicec('/', 1);
 		r_ret = data.font_size_override.has(name) ? Variant(data.font_size_override[name]) : Variant();
-	} else if (sname.begins_with("custom_colors/")) {
+	} else if (sname.begins_with("theme_override_colors/")) {
 		String name = sname.get_slicec('/', 1);
 		r_ret = data.color_override.has(name) ? Variant(data.color_override[name]) : Variant();
-	} else if (sname.begins_with("custom_constants/")) {
+	} else if (sname.begins_with("theme_override_constants/")) {
 		String name = sname.get_slicec('/', 1);
 		r_ret = data.constant_override.has(name) ? Variant(data.constant_override[name]) : Variant();
 	} else {
@@ -340,28 +340,30 @@ bool Control::_get(const StringName &p_name, Variant &r_ret) const {
 void Control::_get_property_list(List<PropertyInfo> *p_list) const {
 	Ref<Theme> theme = Theme::get_default();
 
+	p_list->push_back(PropertyInfo(Variant::NIL, "Theme Overrides", PROPERTY_HINT_NONE, "theme_override_", PROPERTY_USAGE_GROUP));
+
 	{
 		List<StringName> names;
-		theme->get_icon_list(get_class_name(), &names);
+		theme->get_color_list(get_class_name(), &names);
 		for (const StringName &E : names) {
 			uint32_t usage = PROPERTY_USAGE_EDITOR | PROPERTY_USAGE_CHECKABLE;
-			if (data.icon_override.has(E)) {
+			if (data.color_override.has(E)) {
 				usage |= PROPERTY_USAGE_STORAGE | PROPERTY_USAGE_CHECKED;
 			}
 
-			p_list->push_back(PropertyInfo(Variant::OBJECT, "custom_icons/" + E, PROPERTY_HINT_RESOURCE_TYPE, "Texture2D", usage));
+			p_list->push_back(PropertyInfo(Variant::COLOR, "theme_override_colors/" + E, PROPERTY_HINT_NONE, "", usage));
 		}
 	}
 	{
 		List<StringName> names;
-		theme->get_stylebox_list(get_class_name(), &names);
+		theme->get_constant_list(get_class_name(), &names);
 		for (const StringName &E : names) {
 			uint32_t usage = PROPERTY_USAGE_EDITOR | PROPERTY_USAGE_CHECKABLE;
-			if (data.style_override.has(E)) {
+			if (data.constant_override.has(E)) {
 				usage |= PROPERTY_USAGE_STORAGE | PROPERTY_USAGE_CHECKED;
 			}
 
-			p_list->push_back(PropertyInfo(Variant::OBJECT, "custom_styles/" + E, PROPERTY_HINT_RESOURCE_TYPE, "StyleBox", usage));
+			p_list->push_back(PropertyInfo(Variant::INT, "theme_override_constants/" + E, PROPERTY_HINT_RANGE, "-16384,16384", usage));
 		}
 	}
 	{
@@ -373,7 +375,7 @@ void Control::_get_property_list(List<PropertyInfo> *p_list) const {
 				usage |= PROPERTY_USAGE_STORAGE | PROPERTY_USAGE_CHECKED;
 			}
 
-			p_list->push_back(PropertyInfo(Variant::OBJECT, "custom_fonts/" + E, PROPERTY_HINT_RESOURCE_TYPE, "Font", usage));
+			p_list->push_back(PropertyInfo(Variant::OBJECT, "theme_override_fonts/" + E, PROPERTY_HINT_RESOURCE_TYPE, "Font", usage));
 		}
 	}
 	{
@@ -385,31 +387,31 @@ void Control::_get_property_list(List<PropertyInfo> *p_list) const {
 				usage |= PROPERTY_USAGE_STORAGE | PROPERTY_USAGE_CHECKED;
 			}
 
-			p_list->push_back(PropertyInfo(Variant::INT, "custom_font_sizes/" + E, PROPERTY_HINT_NONE, "", usage));
+			p_list->push_back(PropertyInfo(Variant::INT, "theme_override_font_sizes/" + E, PROPERTY_HINT_NONE, "", usage));
 		}
 	}
 	{
 		List<StringName> names;
-		theme->get_color_list(get_class_name(), &names);
+		theme->get_icon_list(get_class_name(), &names);
 		for (const StringName &E : names) {
 			uint32_t usage = PROPERTY_USAGE_EDITOR | PROPERTY_USAGE_CHECKABLE;
-			if (data.color_override.has(E)) {
+			if (data.icon_override.has(E)) {
 				usage |= PROPERTY_USAGE_STORAGE | PROPERTY_USAGE_CHECKED;
 			}
 
-			p_list->push_back(PropertyInfo(Variant::COLOR, "custom_colors/" + E, PROPERTY_HINT_NONE, "", usage));
+			p_list->push_back(PropertyInfo(Variant::OBJECT, "theme_override_icons/" + E, PROPERTY_HINT_RESOURCE_TYPE, "Texture2D", usage));
 		}
 	}
 	{
 		List<StringName> names;
-		theme->get_constant_list(get_class_name(), &names);
+		theme->get_stylebox_list(get_class_name(), &names);
 		for (const StringName &E : names) {
 			uint32_t usage = PROPERTY_USAGE_EDITOR | PROPERTY_USAGE_CHECKABLE;
-			if (data.constant_override.has(E)) {
+			if (data.style_override.has(E)) {
 				usage |= PROPERTY_USAGE_STORAGE | PROPERTY_USAGE_CHECKED;
 			}
 
-			p_list->push_back(PropertyInfo(Variant::INT, "custom_constants/" + E, PROPERTY_HINT_RANGE, "-16384,16384", usage));
+			p_list->push_back(PropertyInfo(Variant::OBJECT, "theme_override_styles/" + E, PROPERTY_HINT_RESOURCE_TYPE, "StyleBox", usage));
 		}
 	}
 }
@@ -2835,6 +2837,9 @@ void Control::_bind_methods() {
 	ADD_GROUP("Layout Direction", "layout_");
 	ADD_PROPERTY(PropertyInfo(Variant::INT, "layout_direction", PROPERTY_HINT_ENUM, "Inherited,Locale,Left-to-Right,Right-to-Left"), "set_layout_direction", "get_layout_direction");
 
+	ADD_GROUP("Auto Translate", "");
+	ADD_PROPERTY(PropertyInfo(Variant::BOOL, "auto_translate"), "set_auto_translate", "is_auto_translating");
+
 	ADD_GROUP("Rect", "rect_");
 	ADD_PROPERTY(PropertyInfo(Variant::VECTOR2, "rect_position", PROPERTY_HINT_NONE, "", PROPERTY_USAGE_EDITOR), "_set_position", "get_position");
 	ADD_PROPERTY(PropertyInfo(Variant::VECTOR2, "rect_global_position", PROPERTY_HINT_NONE, "", PROPERTY_USAGE_NONE), "_set_global_position", "get_global_position");
@@ -2870,9 +2875,6 @@ void Control::_bind_methods() {
 	ADD_PROPERTY(PropertyInfo(Variant::OBJECT, "theme", PROPERTY_HINT_RESOURCE_TYPE, "Theme"), "set_theme", "get_theme");
 	ADD_PROPERTY(PropertyInfo(Variant::STRING, "theme_type_variation", PROPERTY_HINT_ENUM_SUGGESTION), "set_theme_type_variation", "get_theme_type_variation");
 
-	ADD_GROUP("Auto Translate", "");
-	ADD_PROPERTY(PropertyInfo(Variant::BOOL, "auto_translate"), "set_auto_translate", "is_auto_translating");
-
 	BIND_ENUM_CONSTANT(FOCUS_NONE);
 	BIND_ENUM_CONSTANT(FOCUS_CLICK);
 	BIND_ENUM_CONSTANT(FOCUS_ALL);
diff --git a/scene/gui/tab_container.cpp b/scene/gui/tab_container.cpp
index 4b8c4b3e16..cc41d961f6 100644
--- a/scene/gui/tab_container.cpp
+++ b/scene/gui/tab_container.cpp
@@ -899,7 +899,7 @@ void TabContainer::drop_data(const Point2 &p_point, const Variant &p_data) {
 			if (hover_now < 0) {
 				hover_now = get_tab_count() - 1;
 			}
-			move_child(get_tab_control(tab_from_id), hover_now);
+			move_child(get_tab_control(tab_from_id), get_tab_control(hover_now)->get_index());
 			set_current_tab(hover_now);
 		} else if (get_tabs_rearrange_group() != -1) {
 			// drag and drop between TabContainers
@@ -912,7 +912,7 @@ void TabContainer::drop_data(const Point2 &p_point, const Variant &p_data) {
 				if (hover_now < 0) {
 					hover_now = get_tab_count() - 1;
 				}
-				move_child(moving_tabc, hover_now);
+				move_child(moving_tabc, get_tab_control(hover_now)->get_index());
 				set_current_tab(hover_now);
 				emit_signal(SNAME("tab_changed"), hover_now);
 			}
diff --git a/scene/gui/text_edit.cpp b/scene/gui/text_edit.cpp
index be3edccc99..1b3935dd25 100644
--- a/scene/gui/text_edit.cpp
+++ b/scene/gui/text_edit.cpp
@@ -63,45 +63,6 @@ static bool _is_char(char32_t c) {
 	return (c >= 'a' && c <= 'z') || (c >= 'A' && c <= 'Z') || c == '_';
 }
 
-static bool _is_pair_right_symbol(char32_t c) {
-	return c == '"' ||
-		   c == '\'' ||
-		   c == ')' ||
-		   c == ']' ||
-		   c == '}';
-}
-
-static bool _is_pair_left_symbol(char32_t c) {
-	return c == '"' ||
-		   c == '\'' ||
-		   c == '(' ||
-		   c == '[' ||
-		   c == '{';
-}
-
-static bool _is_pair_symbol(char32_t c) {
-	return _is_pair_left_symbol(c) || _is_pair_right_symbol(c);
-}
-
-static char32_t _get_right_pair_symbol(char32_t c) {
-	if (c == '"') {
-		return '"';
-	}
-	if (c == '\'') {
-		return '\'';
-	}
-	if (c == '(') {
-		return ')';
-	}
-	if (c == '[') {
-		return ']';
-	}
-	if (c == '{') {
-		return '}';
-	}
-	return 0;
-}
-
 ///////////////////////////////////////////////////////////////////////////////
 
 void TextEdit::Text::set_font(const Ref<Font> &p_font) {
@@ -633,29 +594,6 @@ void TextEdit::_notification(int p_what) {
 				RenderingServer::get_singleton()->canvas_item_add_rect(ci, Rect2(Point2i(), get_size()), cache.background_color);
 			}
 
-			if (line_length_guidelines) {
-				const int hard_x = xmargin_beg + (int)cache.font->get_char_size('0', 0, cache.font_size).width * line_length_guideline_hard_col - cursor.x_ofs;
-				if (hard_x > xmargin_beg && hard_x < xmargin_end) {
-					if (rtl) {
-						RenderingServer::get_singleton()->canvas_item_add_line(ci, Point2(size.width - hard_x, 0), Point2(size.width - hard_x, size.height), cache.line_length_guideline_color);
-					} else {
-						RenderingServer::get_singleton()->canvas_item_add_line(ci, Point2(hard_x, 0), Point2(hard_x, size.height), cache.line_length_guideline_color);
-					}
-				}
-
-				// Draw a "Soft" line length guideline, less visible than the hard line length guideline.
-				// It's usually set to a lower column compared to the hard line length guideline.
-				// Only drawn if its column differs from the hard line length guideline.
-				const int soft_x = xmargin_beg + (int)cache.font->get_char_size('0', 0, cache.font_size).width * line_length_guideline_soft_col - cursor.x_ofs;
-				if (hard_x != soft_x && soft_x > xmargin_beg && soft_x < xmargin_end) {
-					if (rtl) {
-						RenderingServer::get_singleton()->canvas_item_add_line(ci, Point2(size.width - soft_x, 0), Point2(size.width - soft_x, size.height), cache.line_length_guideline_color * Color(1, 1, 1, 0.5));
-					} else {
-						RenderingServer::get_singleton()->canvas_item_add_line(ci, Point2(soft_x, 0), Point2(soft_x, size.height), cache.line_length_guideline_color * Color(1, 1, 1, 0.5));
-					}
-				}
-			}
-
 			int brace_open_match_line = -1;
 			int brace_open_match_column = -1;
 			bool brace_open_matching = false;
@@ -665,7 +603,7 @@ void TextEdit::_notification(int p_what) {
 			bool brace_close_matching = false;
 			bool brace_close_mismatch = false;
 
-			if (brace_matching_enabled && cursor.line >= 0 && cursor.line < text.size() && cursor.column >= 0) {
+			if (highlight_matching_braces_enabled && cursor.line >= 0 && cursor.line < text.size() && cursor.column >= 0) {
 				if (cursor.column < text[cursor.line].length()) {
 					// Check for open.
 					char32_t c = text[cursor.line][cursor.column];
@@ -1239,11 +1177,11 @@ void TextEdit::_notification(int p_what) {
 						}
 					}
 
-					if (!clipped && select_identifiers_enabled && highlighted_word.length() != 0) { // Highlight word
-						if (_is_char(highlighted_word[0]) || highlighted_word[0] == '.') {
-							int highlighted_word_col = _get_column_pos_of_word(highlighted_word, str, SEARCH_MATCH_CASE | SEARCH_WHOLE_WORDS, 0);
+					if (!clipped && lookup_symbol_word.length() != 0) { // Highlight word
+						if (_is_char(lookup_symbol_word[0]) || lookup_symbol_word[0] == '.') {
+							int highlighted_word_col = _get_column_pos_of_word(lookup_symbol_word, str, SEARCH_MATCH_CASE | SEARCH_WHOLE_WORDS, 0);
 							while (highlighted_word_col != -1) {
-								Vector<Vector2> sel = TS->shaped_text_get_selection(rid, highlighted_word_col + start, highlighted_word_col + highlighted_word.length() + start);
+								Vector<Vector2> sel = TS->shaped_text_get_selection(rid, highlighted_word_col + start, highlighted_word_col + lookup_symbol_word.length() + start);
 								for (int j = 0; j < sel.size(); j++) {
 									Rect2 rect = Rect2(sel[j].x + char_margin + ofs_x, ofs_y, sel[j].y - sel[j].x, row_height);
 									if (rect.position.x + rect.size.x <= xmargin_beg || rect.position.x > xmargin_end) {
@@ -1260,7 +1198,7 @@ void TextEdit::_notification(int p_what) {
 									draw_rect(rect, cache.font_selected_color);
 								}
 
-								highlighted_word_col = _get_column_pos_of_word(highlighted_word, str, SEARCH_MATCH_CASE | SEARCH_WHOLE_WORDS, highlighted_word_col + 1);
+								highlighted_word_col = _get_column_pos_of_word(lookup_symbol_word, str, SEARCH_MATCH_CASE | SEARCH_WHOLE_WORDS, highlighted_word_col + 1);
 							}
 						}
 					}
@@ -1308,7 +1246,7 @@ void TextEdit::_notification(int p_what) {
 
 						int char_pos = char_ofs + char_margin + ofs_x;
 						if (char_pos >= xmargin_beg) {
-							if (brace_matching_enabled) {
+							if (highlight_matching_braces_enabled) {
 								if ((brace_open_match_line == line && brace_open_match_column == glyphs[j].start) ||
 										(cursor.column == glyphs[j].start && cursor.line == line && cursor_wrap_index == line_wrap_index && (brace_open_matching || brace_open_mismatch))) {
 									if (brace_open_mismatch) {
@@ -1567,130 +1505,6 @@ void TextEdit::_notification(int p_what) {
 	}
 }
 
-void TextEdit::_consume_pair_symbol(char32_t ch) {
-	int cursor_position_to_move = cursor_get_column() + 1;
-
-	char32_t ch_single[2] = { ch, 0 };
-	char32_t ch_single_pair[2] = { _get_right_pair_symbol(ch), 0 };
-	char32_t ch_pair[3] = { ch, _get_right_pair_symbol(ch), 0 };
-
-	if (is_selection_active()) {
-		int new_column, new_line;
-
-		begin_complex_operation();
-		_insert_text(get_selection_from_line(), get_selection_from_column(),
-				ch_single,
-				&new_line, &new_column);
-
-		int to_col_offset = 0;
-		if (get_selection_from_line() == get_selection_to_line()) {
-			to_col_offset = 1;
-		}
-
-		_insert_text(get_selection_to_line(),
-				get_selection_to_column() + to_col_offset,
-				ch_single_pair,
-				&new_line, &new_column);
-		end_complex_operation();
-
-		cursor_set_line(get_selection_to_line());
-		cursor_set_column(get_selection_to_column() + to_col_offset);
-
-		deselect();
-		update();
-		return;
-	}
-
-	if ((ch == '\'' || ch == '"') &&
-			cursor_get_column() > 0 && _is_text_char(text[cursor.line][cursor_get_column() - 1]) && !_is_pair_right_symbol(text[cursor.line][cursor_get_column()])) {
-		insert_text_at_cursor(ch_single);
-		cursor_set_column(cursor_position_to_move);
-		return;
-	}
-
-	if (cursor_get_column() < text[cursor.line].length()) {
-		if (_is_text_char(text[cursor.line][cursor_get_column()])) {
-			insert_text_at_cursor(ch_single);
-			cursor_set_column(cursor_position_to_move);
-			return;
-		}
-		if (_is_pair_right_symbol(ch) &&
-				text[cursor.line][cursor_get_column()] == ch) {
-			cursor_set_column(cursor_position_to_move);
-			return;
-		}
-	}
-
-	String line = text[cursor.line];
-
-	bool in_single_quote = false;
-	bool in_double_quote = false;
-	bool found_comment = false;
-
-	int c = 0;
-	while (c < line.length()) {
-		if (line[c] == '\\') {
-			c++; // Skip quoted anything.
-
-			if (cursor.column == c) {
-				break;
-			}
-		} else if (!in_single_quote && !in_double_quote && line[c] == '#') {
-			found_comment = true;
-			break;
-		} else {
-			if (line[c] == '\'' && !in_double_quote) {
-				in_single_quote = !in_single_quote;
-			} else if (line[c] == '"' && !in_single_quote) {
-				in_double_quote = !in_double_quote;
-			}
-		}
-
-		c++;
-
-		if (cursor.column == c) {
-			break;
-		}
-	}
-
-	// Do not need to duplicate quotes while in comments
-	if (found_comment) {
-		insert_text_at_cursor(ch_single);
-		cursor_set_column(cursor_position_to_move);
-
-		return;
-	}
-
-	// Disallow inserting duplicated quotes while already in string
-	if ((in_single_quote || in_double_quote) && (ch == '"' || ch == '\'')) {
-		insert_text_at_cursor(ch_single);
-		cursor_set_column(cursor_position_to_move);
-
-		return;
-	}
-
-	insert_text_at_cursor(ch_pair);
-	cursor_set_column(cursor_position_to_move);
-}
-
-void TextEdit::_consume_backspace_for_pair_symbol(int prev_line, int prev_column) {
-	bool remove_right_symbol = false;
-
-	if (cursor.column < text[cursor.line].length() && cursor.column > 0) {
-		char32_t left_char = text[cursor.line][cursor.column - 1];
-		char32_t right_char = text[cursor.line][cursor.column];
-
-		if (right_char == _get_right_pair_symbol(left_char)) {
-			remove_right_symbol = true;
-		}
-	}
-	if (remove_right_symbol) {
-		_remove_text(prev_line, prev_column, cursor.line, cursor.column + 1);
-	} else {
-		_remove_text(prev_line, prev_column, cursor.line, cursor.column);
-	}
-}
-
 void TextEdit::backspace() {
 	ScriptInstance *si = get_script_instance();
 	if (si && si->has_method("_backspace")) {
@@ -1719,14 +1533,7 @@ void TextEdit::backspace() {
 	if (is_line_hidden(cursor.line)) {
 		set_line_as_hidden(prev_line, true);
 	}
-
-	if (auto_brace_completion_enabled &&
-			cursor.column > 0 &&
-			_is_pair_left_symbol(text[cursor.line][cursor.column - 1])) {
-		_consume_backspace_for_pair_symbol(prev_line, prev_column);
-	} else {
-		_remove_text(prev_line, prev_column, cursor.line, cursor.column);
-	}
+	_remove_text(prev_line, prev_column, cursor.line, cursor.column);
 
 	cursor_set_line(prev_line, false, true);
 	cursor_set_column(prev_column);
@@ -2101,6 +1908,7 @@ void TextEdit::delete_selection() {
 	}
 
 	selection.active = false;
+	selection.selecting_mode = SelectionMode::SELECTION_MODE_NONE;
 	_remove_text(selection.from_line, selection.from_column, selection.to_line, selection.to_column);
 	cursor_set_line(selection.from_line, false, false);
 	cursor_set_column(selection.from_column);
@@ -2137,13 +1945,21 @@ void TextEdit::_move_cursor_document_end(bool p_select) {
 	}
 }
 
-void TextEdit::_handle_unicode_character(uint32_t unicode, bool p_had_selection) {
-	if (p_had_selection) {
+void TextEdit::handle_unicode_input(uint32_t p_unicode) {
+	ScriptInstance *si = get_script_instance();
+	if (si && si->has_method("_handle_unicode_input")) {
+		si->call("_handle_unicode_input", p_unicode);
+		return;
+	}
+
+	bool had_selection = selection.active;
+	if (had_selection) {
+		begin_complex_operation();
 		delete_selection();
 	}
 
 	// Remove the old character if in insert mode and no selection.
-	if (insert_mode && !p_had_selection) {
+	if (insert_mode && !had_selection) {
 		begin_complex_operation();
 
 		// Make sure we don't try and remove empty space.
@@ -2152,15 +1968,10 @@ void TextEdit::_handle_unicode_character(uint32_t unicode, bool p_had_selection)
 		}
 	}
 
-	const char32_t chr[2] = { (char32_t)unicode, 0 };
+	const char32_t chr[2] = { (char32_t)p_unicode, 0 };
+	insert_text_at_cursor(chr);
 
-	if (auto_brace_completion_enabled && _is_pair_symbol(chr[0])) {
-		_consume_pair_symbol(chr[0]);
-	} else {
-		_insert_text_at_cursor(chr);
-	}
-
-	if ((insert_mode && !p_had_selection) || (selection.active != p_had_selection)) {
+	if ((insert_mode && !had_selection) || (had_selection)) {
 		end_complex_operation();
 	}
 }
@@ -2301,6 +2112,10 @@ void TextEdit::_get_minimap_mouse_row(const Point2i &p_mouse, int &r_row) const
 	r_row = row;
 }
 
+bool TextEdit::is_dragging_cursor() const {
+	return dragging_selection || dragging_minimap;
+}
+
 void TextEdit::_gui_input(const Ref<InputEvent> &p_gui_input) {
 	ERR_FAIL_COND(p_gui_input.is_null());
 
@@ -2478,14 +2293,6 @@ void TextEdit::_gui_input(const Ref<InputEvent> &p_gui_input) {
 			}
 		} else {
 			if (mb->get_button_index() == MOUSE_BUTTON_LEFT) {
-				if (mb->is_command_pressed() && highlighted_word != String()) {
-					int row, col;
-					_get_mouse_pos(Point2i(mpos.x, mpos.y), row, col);
-
-					emit_signal(SNAME("symbol_lookup"), highlighted_word, row, col);
-					return;
-				}
-
 				dragging_minimap = false;
 				dragging_selection = false;
 				can_drag_minimap = false;
@@ -2520,18 +2327,6 @@ void TextEdit::_gui_input(const Ref<InputEvent> &p_gui_input) {
 		if (is_layout_rtl()) {
 			mpos.x = get_size().x - mpos.x;
 		}
-		if (select_identifiers_enabled) {
-			if (!dragging_minimap && !dragging_selection && mm->is_command_pressed() && mm->get_button_mask() == 0) {
-				String new_word = get_word_at_pos(mpos);
-				if (new_word != highlighted_word) {
-					emit_signal(SNAME("symbol_validate"), new_word);
-				}
-			} else {
-				if (highlighted_word != String()) {
-					set_highlighted_word(String());
-				}
-			}
-		}
 
 		if (mm->get_button_mask() & MOUSE_BUTTON_MASK_LEFT && get_viewport()->gui_get_drag_data() == Variant()) { // Ignore if dragging.
 			_reset_caret_blink_timer();
@@ -2566,23 +2361,6 @@ void TextEdit::_gui_input(const Ref<InputEvent> &p_gui_input) {
 	Ref<InputEventKey> k = p_gui_input;
 
 	if (k.is_valid()) {
-		// Ctrl + Hover symbols
-#ifdef OSX_ENABLED
-		if (k->get_keycode() == KEY_META) {
-#else
-		if (k->get_keycode() == KEY_CTRL) {
-#endif
-			if (select_identifiers_enabled) {
-				if (k->is_pressed() && !dragging_minimap && !dragging_selection) {
-					Point2 mp = _get_local_mouse_pos();
-					emit_signal(SNAME("symbol_validate"), get_word_at_pos(mp));
-				} else {
-					set_highlighted_word(String());
-				}
-			}
-			return;
-		}
-
 		if (!k->is_pressed()) {
 			return;
 		}
@@ -2598,9 +2376,6 @@ void TextEdit::_gui_input(const Ref<InputEvent> &p_gui_input) {
 		// * No Modifiers are pressed (except shift)
 		bool allow_unicode_handling = !(k->is_command_pressed() || k->is_ctrl_pressed() || k->is_alt_pressed() || k->is_meta_pressed());
 
-		// Save here for insert mode, just in case it is cleared in the following section.
-		bool had_selection = selection.active;
-
 		selection.selecting_text = false;
 
 		// Check and handle all built in shortcuts.
@@ -2806,9 +2581,9 @@ void TextEdit::_gui_input(const Ref<InputEvent> &p_gui_input) {
 			return;
 		}
 
+		// Handle Unicode (if no modifiers active).
 		if (allow_unicode_handling && !readonly && k->get_unicode() >= 32) {
-			// Handle Unicode (if no modifiers active).
-			_handle_unicode_character(k->get_unicode(), had_selection);
+			handle_unicode_input(k->get_unicode());
 			accept_event();
 			return;
 		}
@@ -3151,16 +2926,6 @@ void TextEdit::_remove_text(int p_from_line, int p_from_column, int p_to_line, i
 	current_op = op;
 }
 
-void TextEdit::_insert_text_at_cursor(const String &p_text) {
-	int new_column, new_line;
-	_insert_text(cursor.line, cursor.column, p_text, &new_line, &new_column);
-	_update_scrollbars();
-	cursor_set_line(new_line, false);
-	cursor_set_column(new_column);
-
-	update();
-}
-
 int TextEdit::get_char_count() {
 	int totalsize = 0;
 
@@ -3704,23 +3469,19 @@ int TextEdit::get_column_x_offset_for_line(int p_char, int p_line) const {
 
 void TextEdit::insert_text_at_cursor(const String &p_text) {
 	if (selection.active) {
-		cursor_set_line(selection.from_line, false);
-		cursor_set_column(selection.from_column);
-
-		_remove_text(selection.from_line, selection.from_column, selection.to_line, selection.to_column);
-		selection.active = false;
-		selection.selecting_mode = SelectionMode::SELECTION_MODE_NONE;
+		delete_selection();
 	}
 
-	_insert_text_at_cursor(p_text);
+	int new_column, new_line;
+	_insert_text(cursor.line, cursor.column, p_text, &new_line, &new_column);
+	_update_scrollbars();
+
+	cursor_set_line(new_line, false);
+	cursor_set_column(new_column);
 	update();
 }
 
 Control::CursorShape TextEdit::get_cursor_shape(const Point2 &p_pos) const {
-	if (highlighted_word != String()) {
-		return CURSOR_POINTING_HAND;
-	}
-
 	int row, col;
 	_get_mouse_pos(p_pos, row, col);
 
@@ -3753,7 +3514,7 @@ void TextEdit::set_text(String p_text) {
 	setting_text = true;
 	if (!undo_enabled) {
 		_clear();
-		_insert_text_at_cursor(p_text);
+		insert_text_at_cursor(p_text);
 	}
 
 	if (undo_enabled) {
@@ -3762,7 +3523,7 @@ void TextEdit::set_text(String p_text) {
 
 		begin_complex_operation();
 		_remove_text(0, 0, MAX(0, get_line_count() - 1), MAX(get_line(MAX(get_line_count() - 1, 0)).size() - 1, 0));
-		_insert_text_at_cursor(p_text);
+		insert_text_at_cursor(p_text);
 		end_complex_operation();
 		selection.active = false;
 	}
@@ -3903,30 +3664,6 @@ bool TextEdit::get_draw_control_chars() const {
 	return draw_control_chars;
 }
 
-String TextEdit::get_text_for_lookup_completion() {
-	int row, col;
-	Point2i mp = _get_local_mouse_pos();
-	_get_mouse_pos(mp, row, col);
-
-	String longthing;
-	int len = text.size();
-	for (int i = 0; i < len; i++) {
-		if (i == row) {
-			longthing += text[i].substr(0, col);
-			longthing += String::chr(0xFFFF); // Not unicode, represents the cursor.
-			longthing += text[i].substr(col, text[i].size());
-		} else {
-			longthing += text[i];
-		}
-
-		if (i != len - 1) {
-			longthing += "\n";
-		}
-	}
-
-	return longthing;
-}
-
 String TextEdit::get_line(int line) const {
 	if (line < 0 || line >= text.size()) {
 		return "";
@@ -4015,9 +3752,8 @@ void TextEdit::_update_caches() {
 	cache.font_readonly_color = get_theme_color(SNAME("font_readonly_color"));
 	cache.selection_color = get_theme_color(SNAME("selection_color"));
 	cache.current_line_color = get_theme_color(SNAME("current_line_color"));
-	cache.line_length_guideline_color = get_theme_color(SNAME("line_length_guideline_color"));
 	cache.code_folding_color = get_theme_color(SNAME("code_folding_color"), SNAME("CodeEdit"));
-	cache.brace_mismatch_color = get_theme_color(SNAME("brace_mismatch_color"));
+	cache.brace_mismatch_color = get_theme_color(SNAME("brace_mismatch_color"), SNAME("CodeEdit"));
 	cache.word_highlighted_color = get_theme_color(SNAME("word_highlighted_color"));
 	cache.search_result_color = get_theme_color(SNAME("search_result_color"));
 	cache.search_result_border_color = get_theme_color(SNAME("search_result_border_color"));
@@ -4364,7 +4100,7 @@ void TextEdit::paste() {
 		clipboard += ins;
 	}
 
-	_insert_text_at_cursor(clipboard);
+	insert_text_at_cursor(clipboard);
 	end_complex_operation();
 
 	update();
@@ -5324,21 +5060,6 @@ void TextEdit::insert_at(const String &p_text, int at) {
 	}
 }
 
-void TextEdit::set_show_line_length_guidelines(bool p_show) {
-	line_length_guidelines = p_show;
-	update();
-}
-
-void TextEdit::set_line_length_guideline_soft_column(int p_column) {
-	line_length_guideline_soft_col = p_column;
-	update();
-}
-
-void TextEdit::set_line_length_guideline_hard_column(int p_column) {
-	line_length_guideline_hard_col = p_column;
-	update();
-}
-
 void TextEdit::set_draw_minimap(bool p_draw) {
 	if (draw_minimap != p_draw) {
 		draw_minimap = p_draw;
@@ -5515,19 +5236,11 @@ void TextEdit::menu_option(int p_option) {
 	}
 }
 
-void TextEdit::set_highlighted_word(const String &new_word) {
-	highlighted_word = new_word;
+void TextEdit::_set_symbol_lookup_word(const String &p_symbol) {
+	lookup_symbol_word = p_symbol;
 	update();
 }
 
-void TextEdit::set_select_identifiers_on_hover(bool p_enable) {
-	select_identifiers_enabled = p_enable;
-}
-
-bool TextEdit::is_selecting_identifiers_on_hover_enabled() const {
-	return select_identifiers_enabled;
-}
-
 void TextEdit::set_context_menu_enabled(bool p_enable) {
 	context_menu_enabled = p_enable;
 }
@@ -5719,6 +5432,7 @@ void TextEdit::_bind_methods() {
 	ClassDB::bind_method(D_METHOD("delete_selection"), &TextEdit::delete_selection);
 	ClassDB::bind_method(D_METHOD("backspace"), &TextEdit::backspace);
 	BIND_VMETHOD(MethodInfo("_backspace"));
+	BIND_VMETHOD(MethodInfo("_handle_unicode_input", PropertyInfo(Variant::INT, "unicode")))
 
 	ClassDB::bind_method(D_METHOD("cut"), &TextEdit::cut);
 	ClassDB::bind_method(D_METHOD("copy"), &TextEdit::copy);
@@ -5727,6 +5441,7 @@ void TextEdit::_bind_methods() {
 	ClassDB::bind_method(D_METHOD("select", "from_line", "from_column", "to_line", "to_column"), &TextEdit::select);
 	ClassDB::bind_method(D_METHOD("select_all"), &TextEdit::select_all);
 	ClassDB::bind_method(D_METHOD("deselect"), &TextEdit::deselect);
+	ClassDB::bind_method(D_METHOD("is_dragging_cursor"), &TextEdit::is_dragging_cursor);
 
 	ClassDB::bind_method(D_METHOD("is_selection_active"), &TextEdit::is_selection_active);
 	ClassDB::bind_method(D_METHOD("get_selection_from_line"), &TextEdit::get_selection_from_line);
@@ -5777,6 +5492,7 @@ void TextEdit::_bind_methods() {
 	ClassDB::bind_method(D_METHOD("is_gutter_overwritable", "gutter"), &TextEdit::is_gutter_overwritable);
 	ClassDB::bind_method(D_METHOD("merge_gutters", "from_line", "to_line"), &TextEdit::merge_gutters);
 	ClassDB::bind_method(D_METHOD("set_gutter_custom_draw", "column", "object", "callback"), &TextEdit::set_gutter_custom_draw);
+	ClassDB::bind_method(D_METHOD("get_total_gutter_width"), &TextEdit::get_total_gutter_width);
 
 	// Line gutters.
 	ClassDB::bind_method(D_METHOD("set_line_gutter_metadata", "line", "gutter", "metadata"), &TextEdit::set_line_gutter_metadata);
@@ -5858,8 +5574,6 @@ void TextEdit::_bind_methods() {
 	ADD_SIGNAL(MethodInfo("gutter_clicked", PropertyInfo(Variant::INT, "line"), PropertyInfo(Variant::INT, "gutter")));
 	ADD_SIGNAL(MethodInfo("gutter_added"));
 	ADD_SIGNAL(MethodInfo("gutter_removed"));
-	ADD_SIGNAL(MethodInfo("symbol_lookup", PropertyInfo(Variant::STRING, "symbol"), PropertyInfo(Variant::INT, "row"), PropertyInfo(Variant::INT, "column")));
-	ADD_SIGNAL(MethodInfo("symbol_validate", PropertyInfo(Variant::STRING, "symbol")));
 
 	BIND_ENUM_CONSTANT(MENU_CUT);
 	BIND_ENUM_CONSTANT(MENU_COPY);
diff --git a/scene/gui/text_edit.h b/scene/gui/text_edit.h
index 62d576b48a..9e6dedb267 100644
--- a/scene/gui/text_edit.h
+++ b/scene/gui/text_edit.h
@@ -280,9 +280,6 @@ private:
 	bool cursor_changed_dirty = false;
 	bool text_changed_dirty = false;
 	bool undo_enabled = true;
-	bool line_length_guidelines = false;
-	int line_length_guideline_soft_col = 80;
-	int line_length_guideline_hard_col = 100;
 	bool hiding_enabled = false;
 	bool draw_minimap = false;
 	int minimap_width = 80;
@@ -291,7 +288,6 @@ private:
 
 	bool highlight_all_occurrences = false;
 	bool scroll_past_end_of_file_enabled = false;
-	bool brace_matching_enabled = false;
 	bool highlight_current_line = false;
 
 	String cut_copy_line;
@@ -309,7 +305,7 @@ private:
 	float target_v_scroll = 0.0;
 	float v_scroll_speed = 80.0;
 
-	String highlighted_word;
+	String lookup_symbol_word;
 
 	uint64_t last_dblclk = 0;
 
@@ -386,7 +382,6 @@ private:
 	Size2 get_minimum_size() const override;
 	int _get_control_height() const;
 
-	Point2 _get_local_mouse_pos() const;
 	int _get_menu_action_accelerator(const String &p_action);
 
 	void _reset_caret_blink_timer();
@@ -431,10 +426,9 @@ private:
 	void _delete(bool p_word = false, bool p_all_to_right = false);
 	void _move_cursor_document_start(bool p_select);
 	void _move_cursor_document_end(bool p_select);
-	void _handle_unicode_character(uint32_t unicode, bool p_had_selection);
 
 protected:
-	bool auto_brace_completion_enabled = false;
+	bool highlight_matching_braces_enabled = false;
 
 	struct Cache {
 		Ref<Texture2D> tab_icon;
@@ -455,7 +449,6 @@ protected:
 		Color selection_color;
 		Color code_folding_color;
 		Color current_line_color;
-		Color line_length_guideline_color;
 		Color brace_mismatch_color;
 		Color word_highlighted_color;
 		Color search_result_color;
@@ -470,19 +463,17 @@ protected:
 
 	void _insert_text(int p_line, int p_char, const String &p_text, int *r_end_line = nullptr, int *r_end_char = nullptr);
 	void _remove_text(int p_from_line, int p_from_column, int p_to_line, int p_to_column);
-	void _insert_text_at_cursor(const String &p_text);
 	virtual void _gui_input(const Ref<InputEvent> &p_gui_input);
 	void _notification(int p_what);
 
-	void _consume_pair_symbol(char32_t ch);
-	void _consume_backspace_for_pair_symbol(int prev_line, int prev_column);
-
 	static void _bind_methods();
 
 	bool _set(const StringName &p_name, const Variant &p_value);
 	bool _get(const StringName &p_name, Variant &r_ret) const;
 	void _get_property_list(List<PropertyInfo> *p_list) const;
 
+	void _set_symbol_lookup_word(const String &p_symbol);
+
 public:
 	/* Syntax Highlighting. */
 	Ref<SyntaxHighlighter> get_syntax_highlighter();
@@ -577,8 +568,10 @@ public:
 
 	virtual CursorShape get_cursor_shape(const Point2 &p_pos = Point2i()) const override;
 
+	Point2 _get_local_mouse_pos() const;
 	void _get_mouse_pos(const Point2i &p_mouse, int &r_row, int &r_col) const;
 	void _get_minimap_mouse_row(const Point2i &p_mouse, int &r_row) const;
+	bool is_dragging_cursor() const;
 
 	//void delete_char();
 	//void delete_line();
@@ -607,7 +600,6 @@ public:
 	void set_structured_text_bidi_override_options(Array p_args);
 	Array get_structured_text_bidi_override_options() const;
 
-	void set_highlighted_word(const String &new_word);
 	void set_text(String p_text);
 	void insert_text_at_cursor(const String &p_text);
 	void insert_at(const String &p_text, int at);
@@ -635,13 +627,6 @@ public:
 		scroll_past_end_of_file_enabled = p_enabled;
 		update();
 	}
-	inline void set_auto_brace_completion(bool p_enabled) {
-		auto_brace_completion_enabled = p_enabled;
-	}
-	inline void set_brace_matching(bool p_enabled) {
-		brace_matching_enabled = p_enabled;
-		update();
-	}
 
 	void center_viewport_to_cursor();
 
@@ -686,6 +671,7 @@ public:
 
 	void delete_selection();
 
+	virtual void handle_unicode_input(uint32_t p_unicode);
 	virtual void backspace();
 	void cut();
 	void copy();
@@ -751,10 +737,6 @@ public:
 	void set_highlight_current_line(bool p_enabled);
 	bool is_highlight_current_line_enabled() const;
 
-	void set_show_line_length_guidelines(bool p_show);
-	void set_line_length_guideline_soft_column(int p_column);
-	void set_line_length_guideline_hard_column(int p_column);
-
 	void set_draw_minimap(bool p_draw);
 	bool is_drawing_minimap() const;
 
@@ -766,9 +748,6 @@ public:
 
 	void set_tooltip_request_func(Object *p_obj, const StringName &p_function, const Variant &p_udata);
 
-	void set_select_identifiers_on_hover(bool p_enable);
-	bool is_selecting_identifiers_on_hover_enabled() const;
-
 	void set_context_menu_enabled(bool p_enable);
 	bool is_context_menu_enabled();
 
@@ -784,8 +763,6 @@ public:
 	bool is_menu_visible() const;
 	PopupMenu *get_menu() const;
 
-	String get_text_for_lookup_completion();
-
 	virtual bool is_text_field() const override;
 	TextEdit();
 	~TextEdit();
diff --git a/scene/gui/tree.h b/scene/gui/tree.h
index 10e6642303..be711b4c4f 100644
--- a/scene/gui/tree.h
+++ b/scene/gui/tree.h
@@ -462,8 +462,6 @@ private:
 	void _gui_input(Ref<InputEvent> p_event);
 	void _notification(int p_what);
 
-	Size2 get_minimum_size() const override;
-
 	void item_edited(int p_column, TreeItem *p_item, bool p_lmb = true);
 	void item_changed(int p_column, TreeItem *p_item);
 	void item_selected(int p_column, TreeItem *p_item);
@@ -721,6 +719,8 @@ public:
 	void set_allow_reselect(bool p_allow);
 	bool get_allow_reselect() const;
 
+	Size2 get_minimum_size() const override;
+
 	Tree();
 	~Tree();
 };
diff --git a/scene/main/node.h b/scene/main/node.h
index 20315d7a86..0a88553ea1 100644
--- a/scene/main/node.h
+++ b/scene/main/node.h
@@ -67,6 +67,12 @@ public:
 #endif
 	};
 
+	enum NameCasing {
+		NAME_CASING_PASCAL_CASE,
+		NAME_CASING_CAMEL_CASE,
+		NAME_CASING_SNAKE_CASE
+	};
+
 	struct Comparator {
 		bool operator()(const Node *p_a, const Node *p_b) const { return p_b->is_greater_than(p_a); }
 	};
@@ -140,12 +146,6 @@ private:
 
 	} data;
 
-	enum NameCasing {
-		NAME_CASING_PASCAL_CASE,
-		NAME_CASING_CAMEL_CASE,
-		NAME_CASING_SNAKE_CASE
-	};
-
 	Ref<MultiplayerAPI> multiplayer;
 
 	void _print_tree_pretty(const String &prefix, const bool last);
diff --git a/scene/register_scene_types.cpp b/scene/register_scene_types.cpp
index 8ede8e9a0b..4d3a4ea334 100644
--- a/scene/register_scene_types.cpp
+++ b/scene/register_scene_types.cpp
@@ -1000,9 +1000,12 @@ void register_scene_types() {
 
 	for (int i = 0; i < 20; i++) {
 		GLOBAL_DEF_BASIC(vformat("layer_names/2d_render/layer_%d", i), "");
+		GLOBAL_DEF_BASIC(vformat("layer_names/3d_render/layer_%d", i), "");
+	}
+
+	for (int i = 0; i < 32; i++) {
 		GLOBAL_DEF_BASIC(vformat("layer_names/2d_physics/layer_%d", i), "");
 		GLOBAL_DEF_BASIC(vformat("layer_names/2d_navigation/layer_%d", i), "");
-		GLOBAL_DEF_BASIC(vformat("layer_names/3d_render/layer_%d", i), "");
 		GLOBAL_DEF_BASIC(vformat("layer_names/3d_physics/layer_%d", i), "");
 		GLOBAL_DEF_BASIC(vformat("layer_names/3d_navigation/layer_%d", i), "");
 	}
diff --git a/scene/resources/default_theme/default_theme.cpp b/scene/resources/default_theme/default_theme.cpp
index a4e126fcc6..d0dee2b5e3 100644
--- a/scene/resources/default_theme/default_theme.cpp
+++ b/scene/resources/default_theme/default_theme.cpp
@@ -457,7 +457,6 @@ void fill_default_theme(Ref<Theme> &theme, const Ref<Font> &default_font, const
 	theme->set_color("current_line_color", "TextEdit", Color(0.25, 0.25, 0.26, 0.8));
 	theme->set_color("caret_color", "TextEdit", control_font_color);
 	theme->set_color("caret_background_color", "TextEdit", Color(0, 0, 0));
-	theme->set_color("brace_mismatch_color", "TextEdit", Color(1, 0.2, 0.2));
 	theme->set_color("word_highlighted_color", "TextEdit", Color(0.8, 0.9, 0.9, 0.15));
 
 	theme->set_constant("line_spacing", "TextEdit", 4 * scale);
@@ -502,8 +501,8 @@ void fill_default_theme(Ref<Theme> &theme, const Ref<Font> &default_font, const
 	theme->set_color("caret_background_color", "CodeEdit", Color(0, 0, 0));
 	theme->set_color("brace_mismatch_color", "CodeEdit", Color(1, 0.2, 0.2));
 	theme->set_color("line_number_color", "CodeEdit", Color(0.67, 0.67, 0.67, 0.4));
-	theme->set_color("safe_line_number_color", "CodeEdit", Color(0.67, 0.78, 0.67, 0.6));
 	theme->set_color("word_highlighted_color", "CodeEdit", Color(0.8, 0.9, 0.9, 0.15));
+	theme->set_color("line_length_guideline_color", "CodeEdit", Color(0.3, 0.5, 0.8, 0.1));
 
 	theme->set_constant("completion_lines", "CodeEdit", 7);
 	theme->set_constant("completion_max_width", "CodeEdit", 50);
diff --git a/scene/resources/environment.cpp b/scene/resources/environment.cpp
index 8550af8bcb..cab6c0378a 100644
--- a/scene/resources/environment.cpp
+++ b/scene/resources/environment.cpp
@@ -449,6 +449,7 @@ bool Environment::is_sdfgi_enabled() const {
 }
 
 void Environment::set_sdfgi_cascades(SDFGICascades p_cascades) {
+	ERR_FAIL_INDEX(p_cascades, SDFGI_CASCADES_8 + 1);
 	sdfgi_cascades = p_cascades;
 	_update_sdfgi();
 }
diff --git a/scene/resources/resource_format_text.cpp b/scene/resources/resource_format_text.cpp
index 3f6e926aa7..2b93414906 100644
--- a/scene/resources/resource_format_text.cpp
+++ b/scene/resources/resource_format_text.cpp
@@ -982,7 +982,6 @@ void ResourceLoaderText::open(FileAccess *p_f, bool p_skip_first_tag) {
 
 	rp.ext_func = _parse_ext_resources;
 	rp.sub_func = _parse_sub_resources;
-	rp.func = nullptr;
 	rp.userdata = this;
 }
 
@@ -1020,11 +1019,11 @@ Error ResourceLoaderText::save_as_binary(FileAccess *p_f, const String &p_path)
 	bs_save_unicode_string(wf.f, is_scene ? "PackedScene" : resource_type);
 	wf->store_64(0); //offset to import metadata, this is no longer used
 
-	f->store_32(ResourceFormatSaverBinaryInstance::FORMAT_FLAG_NAMED_SCENE_IDS | ResourceFormatSaverBinaryInstance::FORMAT_FLAG_UIDS);
+	wf->store_32(ResourceFormatSaverBinaryInstance::FORMAT_FLAG_NAMED_SCENE_IDS | ResourceFormatSaverBinaryInstance::FORMAT_FLAG_UIDS);
 
-	f->store_64(res_uid);
+	wf->store_64(res_uid);
 
-	for (int i = 0; i < 5; i++) {
+	for (int i = 0; i < ResourceFormatSaverBinaryInstance::RESERVED_FIELDS; i++) {
 		wf->store_32(0); // reserved
 	}
 
@@ -1074,7 +1073,7 @@ Error ResourceLoaderText::save_as_binary(FileAccess *p_f, const String &p_path)
 
 		bs_save_unicode_string(wf.f, type);
 		bs_save_unicode_string(wf.f, path);
-		wf.f->store_64(uid);
+		wf->store_64(uid);
 
 		int lindex = dummy_read.external_resources.size();
 		Ref<DummyResource> dr;
diff --git a/scene/resources/surface_tool.cpp b/scene/resources/surface_tool.cpp
index 9f8c35b668..875aa30824 100644
--- a/scene/resources/surface_tool.cpp
+++ b/scene/resources/surface_tool.cpp
@@ -1120,6 +1120,7 @@ SurfaceTool::CustomFormat SurfaceTool::get_custom_format(int p_index) const {
 void SurfaceTool::optimize_indices_for_cache() {
 	ERR_FAIL_COND(optimize_vertex_cache_func == nullptr);
 	ERR_FAIL_COND(index_array.size() == 0);
+	ERR_FAIL_COND(index_array.size() % 3 != 0);
 
 	LocalVector old_index_array = index_array;
 	memset(index_array.ptr(), 0, index_array.size() * sizeof(int));
diff --git a/scene/resources/tile_set.cpp b/scene/resources/tile_set.cpp
index 737b47ed95..fcd31143a8 100644
--- a/scene/resources/tile_set.cpp
+++ b/scene/resources/tile_set.cpp
@@ -62,11 +62,6 @@ const char *TileSet::CELL_NEIGHBOR_ENUM_TO_TEXT[] = {
 	"top_right_corner"
 };
 
-// --- Plugins ---
-Vector<TileSetPlugin *> TileSet::get_tile_set_atlas_plugins() const {
-	return tile_set_plugins_vector;
-}
-
 // -- Shape and layout --
 void TileSet::set_tile_shape(TileSet::TileShape p_shape) {
 	tile_shape = p_shape;
@@ -205,21 +200,11 @@ void TileSet::set_uv_clipping(bool p_uv_clipping) {
 	uv_clipping = p_uv_clipping;
 	emit_changed();
 }
+
 bool TileSet::is_uv_clipping() const {
 	return uv_clipping;
 };
 
-void TileSet::set_y_sorting(bool p_y_sort) {
-	if (y_sorting == p_y_sort) {
-		return;
-	}
-	y_sorting = p_y_sort;
-	emit_changed();
-}
-bool TileSet::is_y_sorting() const {
-	return y_sorting;
-};
-
 void TileSet::set_occlusion_layers_count(int p_occlusion_layers_count) {
 	ERR_FAIL_COND(p_occlusion_layers_count < 0);
 	if (occlusion_layers.size() == p_occlusion_layers_count) {
@@ -2604,8 +2589,6 @@ void TileSet::_bind_methods() {
 	// Rendering.
 	ClassDB::bind_method(D_METHOD("set_uv_clipping", "uv_clipping"), &TileSet::set_uv_clipping);
 	ClassDB::bind_method(D_METHOD("is_uv_clipping"), &TileSet::is_uv_clipping);
-	ClassDB::bind_method(D_METHOD("set_y_sorting", "y_sorting"), &TileSet::set_y_sorting);
-	ClassDB::bind_method(D_METHOD("is_y_sorting"), &TileSet::is_y_sorting);
 
 	ClassDB::bind_method(D_METHOD("set_occlusion_layers_count", "occlusion_layers_count"), &TileSet::set_occlusion_layers_count);
 	ClassDB::bind_method(D_METHOD("get_occlusion_layers_count"), &TileSet::get_occlusion_layers_count);
@@ -2670,7 +2653,6 @@ void TileSet::_bind_methods() {
 
 	ADD_GROUP("Rendering", "");
 	ADD_PROPERTY(PropertyInfo(Variant::BOOL, "uv_clipping"), "set_uv_clipping", "is_uv_clipping");
-	ADD_PROPERTY(PropertyInfo(Variant::BOOL, "y_sorting"), "set_y_sorting", "is_y_sorting");
 	ADD_PROPERTY(PropertyInfo(Variant::INT, "occlusion_layers_count", PROPERTY_HINT_NONE, "", PROPERTY_USAGE_EDITOR), "set_occlusion_layers_count", "get_occlusion_layers_count");
 
 	ADD_GROUP("Physics", "");
@@ -2727,12 +2709,6 @@ TileSet::TileSet() {
 	// Instantiate the tile meshes.
 	tile_lines_mesh.instantiate();
 	tile_filled_mesh.instantiate();
-
-	// Instantiate and list all plugins.
-	tile_set_plugins_vector.append(memnew(TileSetPluginAtlasRendering));
-	tile_set_plugins_vector.append(memnew(TileSetPluginAtlasPhysics));
-	tile_set_plugins_vector.append(memnew(TileSetPluginAtlasNavigation));
-	tile_set_plugins_vector.append(memnew(TileSetPluginScenesCollections));
 }
 
 TileSet::~TileSet() {
@@ -2744,9 +2720,6 @@ TileSet::~TileSet() {
 	while (!source_ids.is_empty()) {
 		remove_source(source_ids[0]);
 	}
-	for (int i = 0; i < tile_set_plugins_vector.size(); i++) {
-		memdelete(tile_set_plugins_vector[i]);
-	}
 }
 
 /////////////////////////////// TileSetSource //////////////////////////////////////
@@ -2972,23 +2945,22 @@ void TileSetAtlasSource::_get_property_list(List<PropertyInfo> *p_list) const {
 			// Get the alternative tile's properties and append them to the list of properties.
 			List<PropertyInfo> alternative_property_list;
 			E_alternative->get()->get_property_list(&alternative_property_list);
-			for (List<PropertyInfo>::Element *E_property = alternative_property_list.front(); E_property; E_property = E_property->next()) {
-				property_info = E_property->get();
+			for (PropertyInfo &alternative_property_info : alternative_property_list) {
 				bool valid;
-				Variant default_value = ClassDB::class_get_default_property_value("TileData", property_info.name, &valid);
-				Variant value = E_alternative->get()->get(property_info.name);
+				Variant default_value = ClassDB::class_get_default_property_value("TileData", alternative_property_info.name, &valid);
+				Variant value = E_alternative->get()->get(alternative_property_info.name);
 				if (valid && value == default_value) {
 					property_info.usage ^= PROPERTY_USAGE_STORAGE;
 				}
-				property_info.name = vformat("%s/%s", vformat("%d", E_alternative->key()), property_info.name);
-				tile_property_list.push_back(property_info);
+				alternative_property_info.name = vformat("%s/%s", vformat("%d", E_alternative->key()), alternative_property_info.name);
+				tile_property_list.push_back(alternative_property_info);
 			}
 		}
 
 		// Add all alternative.
-		for (List<PropertyInfo>::Element *E_property = tile_property_list.front(); E_property; E_property = E_property->next()) {
-			E_property->get().name = vformat("%s/%s", vformat("%d:%d", E_tile->key().x, E_tile->key().y), E_property->get().name);
-			p_list->push_back(E_property->get());
+		for (PropertyInfo &tile_property_info : tile_property_list) {
+			tile_property_info.name = vformat("%s/%s", vformat("%d:%d", E_tile->key().x, E_tile->key().y), tile_property_info.name);
+			p_list->push_back(tile_property_info);
 		}
 	}
 }
@@ -3817,6 +3789,7 @@ int TileData::get_terrain_set() const {
 }
 
 void TileData::set_peering_bit_terrain(TileSet::CellNeighbor p_peering_bit, int p_terrain_index) {
+	ERR_FAIL_INDEX(p_peering_bit, TileSet::CellNeighbor::CELL_NEIGHBOR_MAX);
 	ERR_FAIL_COND(terrain_set < 0);
 	ERR_FAIL_COND(p_terrain_index < -1);
 	if (tile_set) {
@@ -4238,842 +4211,3 @@ void TileData::_bind_methods() {
 
 	ADD_SIGNAL(MethodInfo("changed"));
 }
-/////////////////////////////// TileSetPluginAtlasRendering //////////////////////////////////////
-
-void TileSetPluginAtlasRendering::tilemap_notification(TileMap *p_tile_map, int p_what) {
-	switch (p_what) {
-		case CanvasItem::NOTIFICATION_VISIBILITY_CHANGED: {
-			bool visible = p_tile_map->is_visible_in_tree();
-			for (Map<Vector2i, TileMapQuadrant>::Element *E_quadrant = p_tile_map->get_quadrant_map().front(); E_quadrant; E_quadrant = E_quadrant->next()) {
-				TileMapQuadrant &q = E_quadrant->get();
-
-				// Update occluders transform.
-				for (Map<Vector2i, Vector2i, TileMapQuadrant::CoordsWorldComparator>::Element *E_cell = q.world_to_map.front(); E_cell; E_cell = E_cell->next()) {
-					Transform2D xform;
-					xform.set_origin(E_cell->key());
-					for (List<RID>::Element *E_occluder_id = q.occluders.front(); E_occluder_id; E_occluder_id = E_occluder_id->next()) {
-						RS::get_singleton()->canvas_light_occluder_set_enabled(E_occluder_id->get(), visible);
-					}
-				}
-			}
-		} break;
-		case CanvasItem::NOTIFICATION_TRANSFORM_CHANGED: {
-			if (!p_tile_map->is_inside_tree()) {
-				return;
-			}
-
-			for (Map<Vector2i, TileMapQuadrant>::Element *E_quadrant = p_tile_map->get_quadrant_map().front(); E_quadrant; E_quadrant = E_quadrant->next()) {
-				TileMapQuadrant &q = E_quadrant->get();
-
-				// Update occluders transform.
-				for (Map<Vector2i, Vector2i, TileMapQuadrant::CoordsWorldComparator>::Element *E_cell = q.world_to_map.front(); E_cell; E_cell = E_cell->next()) {
-					Transform2D xform;
-					xform.set_origin(E_cell->key());
-					for (List<RID>::Element *E_occluder_id = q.occluders.front(); E_occluder_id; E_occluder_id = E_occluder_id->next()) {
-						RS::get_singleton()->canvas_light_occluder_set_transform(E_occluder_id->get(), p_tile_map->get_global_transform() * xform);
-					}
-				}
-			}
-		} break;
-		case CanvasItem::NOTIFICATION_DRAW: {
-			Ref<TileSet> tile_set = p_tile_map->get_tileset();
-			if (tile_set.is_valid() || p_tile_map->is_y_sort_enabled()) {
-				RenderingServer::get_singleton()->canvas_item_set_sort_children_by_y(p_tile_map->get_canvas_item(), tile_set->is_y_sorting() || p_tile_map->is_y_sort_enabled());
-			}
-		} break;
-	}
-}
-
-void TileSetPluginAtlasRendering::draw_tile(RID p_canvas_item, Vector2i p_position, const Ref<TileSet> p_tile_set, int p_atlas_source_id, Vector2i p_atlas_coords, int p_alternative_tile, Color p_modulation) {
-	ERR_FAIL_COND(!p_tile_set.is_valid());
-	ERR_FAIL_COND(!p_tile_set->has_source(p_atlas_source_id));
-	ERR_FAIL_COND(!p_tile_set->get_source(p_atlas_source_id)->has_tile(p_atlas_coords));
-	ERR_FAIL_COND(!p_tile_set->get_source(p_atlas_source_id)->has_alternative_tile(p_atlas_coords, p_alternative_tile));
-
-	TileSetSource *source = *p_tile_set->get_source(p_atlas_source_id);
-	TileSetAtlasSource *atlas_source = Object::cast_to<TileSetAtlasSource>(source);
-	if (atlas_source) {
-		// Get the texture.
-		Ref<Texture2D> tex = atlas_source->get_texture();
-		if (!tex.is_valid()) {
-			return;
-		}
-
-		// Check if we are in the texture, return otherwise.
-		Vector2i grid_size = atlas_source->get_atlas_grid_size();
-		if (p_atlas_coords.x >= grid_size.x || p_atlas_coords.y >= grid_size.y) {
-			return;
-		}
-
-		// Get tile data.
-		TileData *tile_data = Object::cast_to<TileData>(atlas_source->get_tile_data(p_atlas_coords, p_alternative_tile));
-
-		// Compute the offset
-		Rect2i source_rect = atlas_source->get_tile_texture_region(p_atlas_coords);
-		Vector2i tile_offset = atlas_source->get_tile_effective_texture_offset(p_atlas_coords, p_alternative_tile);
-
-		// Compute the destination rectangle in the CanvasItem.
-		Rect2 dest_rect;
-		dest_rect.size = source_rect.size;
-		dest_rect.size.x += fp_adjust;
-		dest_rect.size.y += fp_adjust;
-
-		bool transpose = tile_data->get_transpose();
-		if (transpose) {
-			dest_rect.position = (p_position - Vector2(dest_rect.size.y, dest_rect.size.x) / 2 - tile_offset);
-		} else {
-			dest_rect.position = (p_position - dest_rect.size / 2 - tile_offset);
-		}
-
-		if (tile_data->get_flip_h()) {
-			dest_rect.size.x = -dest_rect.size.x;
-		}
-
-		if (tile_data->get_flip_v()) {
-			dest_rect.size.y = -dest_rect.size.y;
-		}
-
-		// Get the tile modulation.
-		Color modulate = tile_data->get_modulate();
-		modulate = Color(modulate.r * p_modulation.r, modulate.g * p_modulation.g, modulate.b * p_modulation.b, modulate.a * p_modulation.a);
-
-		// Draw the tile.
-		tex->draw_rect_region(p_canvas_item, dest_rect, source_rect, modulate, transpose, p_tile_set->is_uv_clipping());
-	}
-}
-
-void TileSetPluginAtlasRendering::update_dirty_quadrants(TileMap *p_tile_map, SelfList<TileMapQuadrant>::List &r_dirty_quadrant_list) {
-	ERR_FAIL_COND(!p_tile_map);
-	ERR_FAIL_COND(!p_tile_map->is_inside_tree());
-	Ref<TileSet> tile_set = p_tile_map->get_tileset();
-	ERR_FAIL_COND(!tile_set.is_valid());
-
-	bool visible = p_tile_map->is_visible_in_tree();
-
-	SelfList<TileMapQuadrant> *q_list_element = r_dirty_quadrant_list.first();
-	while (q_list_element) {
-		TileMapQuadrant &q = *q_list_element->self();
-
-		RenderingServer *rs = RenderingServer::get_singleton();
-
-		// Free the canvas items.
-		for (const RID &E : q.canvas_items) {
-			rs->free(E);
-		}
-		q.canvas_items.clear();
-
-		// Free the occluders.
-		for (const RID &E : q.occluders) {
-			rs->free(E);
-		}
-		q.occluders.clear();
-
-		// Those allow to group cell per material or z-index.
-		Ref<ShaderMaterial> prev_material;
-		int prev_z_index = 0;
-		RID prev_canvas_item;
-
-		// Iterate over the cells of the quadrant.
-		for (Map<Vector2i, Vector2i, TileMapQuadrant::CoordsWorldComparator>::Element *E_cell = q.world_to_map.front(); E_cell; E_cell = E_cell->next()) {
-			TileMapCell c = p_tile_map->get_cell(E_cell->value(), true);
-
-			TileSetSource *source;
-			if (tile_set->has_source(c.source_id)) {
-				source = *tile_set->get_source(c.source_id);
-
-				if (!source->has_tile(c.get_atlas_coords()) || !source->has_alternative_tile(c.get_atlas_coords(), c.alternative_tile)) {
-					continue;
-				}
-
-				TileSetAtlasSource *atlas_source = Object::cast_to<TileSetAtlasSource>(source);
-				if (atlas_source) {
-					// Get the tile data.
-					TileData *tile_data = Object::cast_to<TileData>(atlas_source->get_tile_data(c.get_atlas_coords(), c.alternative_tile));
-					Ref<ShaderMaterial> mat = tile_data->tile_get_material();
-					int z_index = tile_data->get_z_index();
-
-					// Quandrant pos.
-					Vector2 position = p_tile_map->map_to_world(q.coords * p_tile_map->get_effective_quadrant_size());
-					if (tile_set->is_y_sorting()) {
-						// When Y-sorting, the quandrant size is sure to be 1, we can thus offset the CanvasItem.
-						position.y += tile_data->get_y_sort_origin();
-					}
-
-					// --- CanvasItems ---
-					// Create two canvas items, for rendering and debug.
-					RID canvas_item;
-
-					// Check if the material or the z_index changed.
-					if (prev_canvas_item == RID() || prev_material != mat || prev_z_index != z_index) {
-						// If so, create a new CanvasItem.
-						canvas_item = rs->canvas_item_create();
-						if (mat.is_valid()) {
-							rs->canvas_item_set_material(canvas_item, mat->get_rid());
-						}
-						rs->canvas_item_set_parent(canvas_item, p_tile_map->get_canvas_item());
-						rs->canvas_item_set_use_parent_material(canvas_item, p_tile_map->get_use_parent_material() || p_tile_map->get_material().is_valid());
-
-						Transform2D xform;
-						xform.set_origin(position);
-						rs->canvas_item_set_transform(canvas_item, xform);
-
-						rs->canvas_item_set_light_mask(canvas_item, p_tile_map->get_light_mask());
-						rs->canvas_item_set_z_index(canvas_item, z_index);
-
-						rs->canvas_item_set_default_texture_filter(canvas_item, RS::CanvasItemTextureFilter(p_tile_map->CanvasItem::get_texture_filter()));
-						rs->canvas_item_set_default_texture_repeat(canvas_item, RS::CanvasItemTextureRepeat(p_tile_map->CanvasItem::get_texture_repeat()));
-
-						q.canvas_items.push_back(canvas_item);
-
-						prev_canvas_item = canvas_item;
-						prev_material = mat;
-						prev_z_index = z_index;
-
-					} else {
-						// Keep the same canvas_item to draw on.
-						canvas_item = prev_canvas_item;
-					}
-
-					// Drawing the tile in the canvas item.
-					draw_tile(canvas_item, E_cell->key() - position, tile_set, c.source_id, c.get_atlas_coords(), c.alternative_tile, p_tile_map->get_self_modulate());
-
-					// --- Occluders ---
-					for (int i = 0; i < tile_set->get_occlusion_layers_count(); i++) {
-						Transform2D xform;
-						xform.set_origin(E_cell->key());
-						if (tile_data->get_occluder(i).is_valid()) {
-							RID occluder_id = rs->canvas_light_occluder_create();
-							rs->canvas_light_occluder_set_enabled(occluder_id, visible);
-							rs->canvas_light_occluder_set_transform(occluder_id, p_tile_map->get_global_transform() * xform);
-							rs->canvas_light_occluder_set_polygon(occluder_id, tile_data->get_occluder(i)->get_rid());
-							rs->canvas_light_occluder_attach_to_canvas(occluder_id, p_tile_map->get_canvas());
-							rs->canvas_light_occluder_set_light_mask(occluder_id, tile_set->get_occlusion_layer_light_mask(i));
-							q.occluders.push_back(occluder_id);
-						}
-					}
-				}
-			}
-		}
-
-		quadrant_order_dirty = true;
-		q_list_element = q_list_element->next();
-	}
-
-	// Reset the drawing indices
-	if (quadrant_order_dirty) {
-		int index = -(int64_t)0x80000000; //always must be drawn below children.
-
-		// Sort the quadrants coords per world coordinates
-		Map<Vector2i, Vector2i, TileMapQuadrant::CoordsWorldComparator> world_to_map;
-		Map<Vector2i, TileMapQuadrant> quadrant_map = p_tile_map->get_quadrant_map();
-		for (Map<Vector2i, TileMapQuadrant>::Element *E = quadrant_map.front(); E; E = E->next()) {
-			world_to_map[p_tile_map->map_to_world(E->key())] = E->key();
-		}
-
-		// Sort the quadrants
-		for (Map<Vector2i, Vector2i, TileMapQuadrant::CoordsWorldComparator>::Element *E = world_to_map.front(); E; E = E->next()) {
-			TileMapQuadrant &q = quadrant_map[E->value()];
-			for (const RID &F : q.canvas_items) {
-				RS::get_singleton()->canvas_item_set_draw_index(F, index++);
-			}
-		}
-
-		quadrant_order_dirty = false;
-	}
-}
-
-void TileSetPluginAtlasRendering::create_quadrant(TileMap *p_tile_map, TileMapQuadrant *p_quadrant) {
-	Ref<TileSet> tile_set = p_tile_map->get_tileset();
-	ERR_FAIL_COND(!tile_set.is_valid());
-
-	quadrant_order_dirty = true;
-}
-
-void TileSetPluginAtlasRendering::cleanup_quadrant(TileMap *p_tile_map, TileMapQuadrant *p_quadrant) {
-	// Free the canvas items.
-	for (const RID &E : p_quadrant->canvas_items) {
-		RenderingServer::get_singleton()->free(E);
-	}
-	p_quadrant->canvas_items.clear();
-
-	// Free the occluders.
-	for (const RID &E : p_quadrant->occluders) {
-		RenderingServer::get_singleton()->free(E);
-	}
-	p_quadrant->occluders.clear();
-}
-
-void TileSetPluginAtlasRendering::draw_quadrant_debug(TileMap *p_tile_map, TileMapQuadrant *p_quadrant) {
-	Ref<TileSet> tile_set = p_tile_map->get_tileset();
-	ERR_FAIL_COND(!tile_set.is_valid());
-
-	if (!Engine::get_singleton()->is_editor_hint()) {
-		return;
-	}
-
-	// Draw a placeholder for scenes needing one.
-	RenderingServer *rs = RenderingServer::get_singleton();
-	Vector2 quadrant_pos = p_tile_map->map_to_world(p_quadrant->coords * p_tile_map->get_effective_quadrant_size());
-	for (Set<Vector2i>::Element *E_cell = p_quadrant->cells.front(); E_cell; E_cell = E_cell->next()) {
-		const TileMapCell &c = p_tile_map->get_cell(E_cell->get(), true);
-
-		TileSetSource *source;
-		if (tile_set->has_source(c.source_id)) {
-			source = *tile_set->get_source(c.source_id);
-
-			if (!source->has_tile(c.get_atlas_coords()) || !source->has_alternative_tile(c.get_atlas_coords(), c.alternative_tile)) {
-				continue;
-			}
-
-			TileSetAtlasSource *atlas_source = Object::cast_to<TileSetAtlasSource>(source);
-			if (atlas_source) {
-				Vector2i grid_size = atlas_source->get_atlas_grid_size();
-				if (!atlas_source->get_texture().is_valid() || c.get_atlas_coords().x >= grid_size.x || c.get_atlas_coords().y >= grid_size.y) {
-					// Generate a random color from the hashed values of the tiles.
-					Array to_hash;
-					to_hash.push_back(c.source_id);
-					to_hash.push_back(c.get_atlas_coords());
-					to_hash.push_back(c.alternative_tile);
-					uint32_t hash = RandomPCG(to_hash.hash()).rand();
-
-					Color color;
-					color = color.from_hsv(
-							(float)((hash >> 24) & 0xFF) / 256.0,
-							Math::lerp(0.5, 1.0, (float)((hash >> 16) & 0xFF) / 256.0),
-							Math::lerp(0.5, 1.0, (float)((hash >> 8) & 0xFF) / 256.0),
-							0.8);
-
-					// Draw a placeholder tile.
-					Transform2D xform;
-					xform.set_origin(p_tile_map->map_to_world(E_cell->get()) - quadrant_pos);
-					rs->canvas_item_add_set_transform(p_quadrant->debug_canvas_item, xform);
-					rs->canvas_item_add_circle(p_quadrant->debug_canvas_item, Vector2(), MIN(tile_set->get_tile_size().x, tile_set->get_tile_size().y) / 4.0, color);
-				}
-			}
-		}
-	}
-}
-
-/////////////////////////////// TileSetPluginAtlasPhysics //////////////////////////////////////
-
-void TileSetPluginAtlasPhysics::tilemap_notification(TileMap *p_tile_map, int p_what) {
-	switch (p_what) {
-		case CanvasItem::NOTIFICATION_TRANSFORM_CHANGED: {
-			// Update the bodies transforms.
-			if (p_tile_map->is_inside_tree()) {
-				Map<Vector2i, TileMapQuadrant> quadrant_map = p_tile_map->get_quadrant_map();
-				Transform2D global_transform = p_tile_map->get_global_transform();
-
-				for (Map<Vector2i, TileMapQuadrant>::Element *E = quadrant_map.front(); E; E = E->next()) {
-					TileMapQuadrant &q = E->get();
-
-					Transform2D xform;
-					xform.set_origin(p_tile_map->map_to_world(E->key() * p_tile_map->get_effective_quadrant_size()));
-					xform = global_transform * xform;
-
-					for (int body_index = 0; body_index < q.bodies.size(); body_index++) {
-						PhysicsServer2D::get_singleton()->body_set_state(q.bodies[body_index], PhysicsServer2D::BODY_STATE_TRANSFORM, xform);
-					}
-				}
-			}
-		} break;
-	}
-}
-
-void TileSetPluginAtlasPhysics::update_dirty_quadrants(TileMap *p_tile_map, SelfList<TileMapQuadrant>::List &r_dirty_quadrant_list) {
-	ERR_FAIL_COND(!p_tile_map);
-	ERR_FAIL_COND(!p_tile_map->is_inside_tree());
-	Ref<TileSet> tile_set = p_tile_map->get_tileset();
-	ERR_FAIL_COND(!tile_set.is_valid());
-
-	Transform2D global_transform = p_tile_map->get_global_transform();
-	PhysicsServer2D *ps = PhysicsServer2D::get_singleton();
-
-	SelfList<TileMapQuadrant> *q_list_element = r_dirty_quadrant_list.first();
-	while (q_list_element) {
-		TileMapQuadrant &q = *q_list_element->self();
-
-		Vector2 quadrant_pos = p_tile_map->map_to_world(q.coords * p_tile_map->get_effective_quadrant_size());
-
-		// Clear shapes.
-		for (int body_index = 0; body_index < q.bodies.size(); body_index++) {
-			ps->body_clear_shapes(q.bodies[body_index]);
-
-			// Position the bodies.
-			Transform2D xform;
-			xform.set_origin(quadrant_pos);
-			xform = global_transform * xform;
-			ps->body_set_state(q.bodies[body_index], PhysicsServer2D::BODY_STATE_TRANSFORM, xform);
-		}
-
-		for (Set<Vector2i>::Element *E_cell = q.cells.front(); E_cell; E_cell = E_cell->next()) {
-			TileMapCell c = p_tile_map->get_cell(E_cell->get(), true);
-
-			TileSetSource *source;
-			if (tile_set->has_source(c.source_id)) {
-				source = *tile_set->get_source(c.source_id);
-
-				if (!source->has_tile(c.get_atlas_coords()) || !source->has_alternative_tile(c.get_atlas_coords(), c.alternative_tile)) {
-					continue;
-				}
-
-				TileSetAtlasSource *atlas_source = Object::cast_to<TileSetAtlasSource>(source);
-				if (atlas_source) {
-					TileData *tile_data = Object::cast_to<TileData>(atlas_source->get_tile_data(c.get_atlas_coords(), c.alternative_tile));
-
-					for (int body_index = 0; body_index < q.bodies.size(); body_index++) {
-						// Add the shapes again.
-						for (int polygon_index = 0; polygon_index < tile_data->get_collision_polygons_count(body_index); polygon_index++) {
-							bool one_way_collision = tile_data->is_collision_polygon_one_way(body_index, polygon_index);
-							float one_way_collision_margin = tile_data->get_collision_polygon_one_way_margin(body_index, polygon_index);
-
-							int shapes_count = tile_data->get_collision_polygon_shapes_count(body_index, polygon_index);
-							for (int shape_index = 0; shape_index < shapes_count; shape_index++) {
-								Transform2D xform = Transform2D();
-								xform.set_origin(p_tile_map->map_to_world(E_cell->get()) - quadrant_pos);
-
-								// Add decomposed convex shapes.
-								Ref<ConvexPolygonShape2D> shape = tile_data->get_collision_polygon_shape(body_index, polygon_index, shape_index);
-								ps->body_add_shape(q.bodies[body_index], shape->get_rid(), xform);
-								ps->body_set_shape_metadata(q.bodies[body_index], shape_index, E_cell->get());
-								ps->body_set_shape_as_one_way_collision(q.bodies[body_index], shape_index, one_way_collision, one_way_collision_margin);
-							}
-						}
-					}
-				}
-			}
-		}
-
-		q_list_element = q_list_element->next();
-	}
-}
-
-void TileSetPluginAtlasPhysics::create_quadrant(TileMap *p_tile_map, TileMapQuadrant *p_quadrant) {
-	Ref<TileSet> tile_set = p_tile_map->get_tileset();
-	ERR_FAIL_COND(!tile_set.is_valid());
-
-	//Get the TileMap's gobla transform.
-	Transform2D global_transform;
-	if (p_tile_map->is_inside_tree()) {
-		global_transform = p_tile_map->get_global_transform();
-	}
-
-	// Clear all bodies.
-	p_quadrant->bodies.clear();
-
-	// Create the body and set its parameters.
-	for (int layer_index = 0; layer_index < tile_set->get_physics_layers_count(); layer_index++) {
-		RID body = PhysicsServer2D::get_singleton()->body_create();
-		PhysicsServer2D::get_singleton()->body_set_mode(body, PhysicsServer2D::BODY_MODE_STATIC);
-
-		PhysicsServer2D::get_singleton()->body_attach_object_instance_id(body, p_tile_map->get_instance_id());
-		PhysicsServer2D::get_singleton()->body_set_collision_layer(body, tile_set->get_physics_layer_collision_layer(layer_index));
-		PhysicsServer2D::get_singleton()->body_set_collision_mask(body, tile_set->get_physics_layer_collision_mask(layer_index));
-
-		Ref<PhysicsMaterial> physics_material = tile_set->get_physics_layer_physics_material(layer_index);
-		if (!physics_material.is_valid()) {
-			PhysicsServer2D::get_singleton()->body_set_param(body, PhysicsServer2D::BODY_PARAM_BOUNCE, 0);
-			PhysicsServer2D::get_singleton()->body_set_param(body, PhysicsServer2D::BODY_PARAM_FRICTION, 1);
-		} else {
-			PhysicsServer2D::get_singleton()->body_set_param(body, PhysicsServer2D::BODY_PARAM_BOUNCE, physics_material->computed_bounce());
-			PhysicsServer2D::get_singleton()->body_set_param(body, PhysicsServer2D::BODY_PARAM_FRICTION, physics_material->computed_friction());
-		}
-
-		if (p_tile_map->is_inside_tree()) {
-			RID space = p_tile_map->get_world_2d()->get_space();
-			PhysicsServer2D::get_singleton()->body_set_space(body, space);
-
-			Transform2D xform;
-			xform.set_origin(p_tile_map->map_to_world(p_quadrant->coords * p_tile_map->get_effective_quadrant_size()));
-			xform = global_transform * xform;
-			PhysicsServer2D::get_singleton()->body_set_state(body, PhysicsServer2D::BODY_STATE_TRANSFORM, xform);
-		}
-
-		p_quadrant->bodies.push_back(body);
-	}
-}
-
-void TileSetPluginAtlasPhysics::cleanup_quadrant(TileMap *p_tile_map, TileMapQuadrant *p_quadrant) {
-	// Remove a quadrant.
-	for (int body_index = 0; body_index < p_quadrant->bodies.size(); body_index++) {
-		PhysicsServer2D::get_singleton()->free(p_quadrant->bodies[body_index]);
-	}
-	p_quadrant->bodies.clear();
-}
-
-void TileSetPluginAtlasPhysics::draw_quadrant_debug(TileMap *p_tile_map, TileMapQuadrant *p_quadrant) {
-	// Draw the debug collision shapes.
-	Ref<TileSet> tile_set = p_tile_map->get_tileset();
-	ERR_FAIL_COND(!tile_set.is_valid());
-
-	if (!p_tile_map->get_tree()) {
-		return;
-	}
-
-	bool show_collision = false;
-	switch (p_tile_map->get_collision_visibility_mode()) {
-		case TileMap::VISIBILITY_MODE_DEFAULT:
-			show_collision = !Engine::get_singleton()->is_editor_hint() && (p_tile_map->get_tree() && p_tile_map->get_tree()->is_debugging_navigation_hint());
-			break;
-		case TileMap::VISIBILITY_MODE_FORCE_HIDE:
-			show_collision = false;
-			break;
-		case TileMap::VISIBILITY_MODE_FORCE_SHOW:
-			show_collision = true;
-			break;
-	}
-	if (!show_collision) {
-		return;
-	}
-
-	RenderingServer *rs = RenderingServer::get_singleton();
-
-	Vector2 quadrant_pos = p_tile_map->map_to_world(p_quadrant->coords * p_tile_map->get_effective_quadrant_size());
-
-	Color debug_collision_color = p_tile_map->get_tree()->get_debug_collisions_color();
-	for (Set<Vector2i>::Element *E_cell = p_quadrant->cells.front(); E_cell; E_cell = E_cell->next()) {
-		TileMapCell c = p_tile_map->get_cell(E_cell->get(), true);
-
-		Transform2D xform;
-		xform.set_origin(p_tile_map->map_to_world(E_cell->get()) - quadrant_pos);
-		rs->canvas_item_add_set_transform(p_quadrant->debug_canvas_item, xform);
-
-		if (tile_set->has_source(c.source_id)) {
-			TileSetSource *source = *tile_set->get_source(c.source_id);
-
-			if (!source->has_tile(c.get_atlas_coords()) || !source->has_alternative_tile(c.get_atlas_coords(), c.alternative_tile)) {
-				continue;
-			}
-
-			TileSetAtlasSource *atlas_source = Object::cast_to<TileSetAtlasSource>(source);
-			if (atlas_source) {
-				TileData *tile_data = Object::cast_to<TileData>(atlas_source->get_tile_data(c.get_atlas_coords(), c.alternative_tile));
-
-				for (int body_index = 0; body_index < p_quadrant->bodies.size(); body_index++) {
-					for (int polygon_index = 0; polygon_index < tile_data->get_collision_polygons_count(body_index); polygon_index++) {
-						// Draw the debug polygon.
-						Vector<Vector2> polygon = tile_data->get_collision_polygon_points(body_index, polygon_index);
-						if (polygon.size() >= 3) {
-							Vector<Color> color;
-							color.push_back(debug_collision_color);
-							rs->canvas_item_add_polygon(p_quadrant->debug_canvas_item, polygon, color);
-						}
-					}
-				}
-			}
-		}
-		rs->canvas_item_add_set_transform(p_quadrant->debug_canvas_item, Transform2D());
-	}
-};
-
-/////////////////////////////// TileSetPluginAtlasNavigation //////////////////////////////////////
-
-void TileSetPluginAtlasNavigation::tilemap_notification(TileMap *p_tile_map, int p_what) {
-	switch (p_what) {
-		case CanvasItem::NOTIFICATION_TRANSFORM_CHANGED: {
-			if (p_tile_map->is_inside_tree()) {
-				Map<Vector2i, TileMapQuadrant> quadrant_map = p_tile_map->get_quadrant_map();
-				Transform2D tilemap_xform = p_tile_map->get_global_transform();
-				for (Map<Vector2i, TileMapQuadrant>::Element *E_quadrant = quadrant_map.front(); E_quadrant; E_quadrant = E_quadrant->next()) {
-					TileMapQuadrant &q = E_quadrant->get();
-					for (Map<Vector2i, Vector<RID>>::Element *E_region = q.navigation_regions.front(); E_region; E_region = E_region->next()) {
-						for (int layer_index = 0; layer_index < E_region->get().size(); layer_index++) {
-							RID region = E_region->get()[layer_index];
-							if (!region.is_valid()) {
-								continue;
-							}
-							Transform2D tile_transform;
-							tile_transform.set_origin(p_tile_map->map_to_world(E_region->key()));
-							NavigationServer2D::get_singleton()->region_set_transform(region, tilemap_xform * tile_transform);
-						}
-					}
-				}
-			}
-		} break;
-	}
-}
-
-void TileSetPluginAtlasNavigation::update_dirty_quadrants(TileMap *p_tile_map, SelfList<TileMapQuadrant>::List &r_dirty_quadrant_list) {
-	ERR_FAIL_COND(!p_tile_map);
-	ERR_FAIL_COND(!p_tile_map->is_inside_tree());
-	Ref<TileSet> tile_set = p_tile_map->get_tileset();
-	ERR_FAIL_COND(!tile_set.is_valid());
-
-	// Get colors for debug.
-	SceneTree *st = SceneTree::get_singleton();
-	Color debug_navigation_color;
-	bool debug_navigation = st && st->is_debugging_navigation_hint();
-	if (debug_navigation) {
-		debug_navigation_color = st->get_debug_navigation_color();
-	}
-
-	Transform2D tilemap_xform = p_tile_map->get_global_transform();
-	SelfList<TileMapQuadrant> *q_list_element = r_dirty_quadrant_list.first();
-	while (q_list_element) {
-		TileMapQuadrant &q = *q_list_element->self();
-
-		// Clear navigation shapes in the quadrant.
-		for (Map<Vector2i, Vector<RID>>::Element *E = q.navigation_regions.front(); E; E = E->next()) {
-			for (int i = 0; i < E->get().size(); i++) {
-				RID region = E->get()[i];
-				if (!region.is_valid()) {
-					continue;
-				}
-				NavigationServer2D::get_singleton()->region_set_map(region, RID());
-			}
-		}
-		q.navigation_regions.clear();
-
-		// Get the navigation polygons and create regions.
-		for (Set<Vector2i>::Element *E_cell = q.cells.front(); E_cell; E_cell = E_cell->next()) {
-			TileMapCell c = p_tile_map->get_cell(E_cell->get(), true);
-
-			TileSetSource *source;
-			if (tile_set->has_source(c.source_id)) {
-				source = *tile_set->get_source(c.source_id);
-
-				if (!source->has_tile(c.get_atlas_coords()) || !source->has_alternative_tile(c.get_atlas_coords(), c.alternative_tile)) {
-					continue;
-				}
-
-				TileSetAtlasSource *atlas_source = Object::cast_to<TileSetAtlasSource>(source);
-				if (atlas_source) {
-					TileData *tile_data = Object::cast_to<TileData>(atlas_source->get_tile_data(c.get_atlas_coords(), c.alternative_tile));
-					q.navigation_regions[E_cell->get()].resize(tile_set->get_navigation_layers_count());
-
-					for (int layer_index = 0; layer_index < tile_set->get_navigation_layers_count(); layer_index++) {
-						Ref<NavigationPolygon> navpoly;
-						navpoly = tile_data->get_navigation_polygon(layer_index);
-
-						if (navpoly.is_valid()) {
-							Transform2D tile_transform;
-							tile_transform.set_origin(p_tile_map->map_to_world(E_cell->get()));
-
-							RID region = NavigationServer2D::get_singleton()->region_create();
-							NavigationServer2D::get_singleton()->region_set_map(region, p_tile_map->get_world_2d()->get_navigation_map());
-							NavigationServer2D::get_singleton()->region_set_transform(region, tilemap_xform * tile_transform);
-							NavigationServer2D::get_singleton()->region_set_navpoly(region, navpoly);
-							q.navigation_regions[E_cell->get()].write[layer_index] = region;
-						}
-					}
-				}
-			}
-		}
-
-		q_list_element = q_list_element->next();
-	}
-}
-
-void TileSetPluginAtlasNavigation::cleanup_quadrant(TileMap *p_tile_map, TileMapQuadrant *p_quadrant) {
-	// Clear navigation shapes in the quadrant.
-	for (Map<Vector2i, Vector<RID>>::Element *E = p_quadrant->navigation_regions.front(); E; E = E->next()) {
-		for (int i = 0; i < E->get().size(); i++) {
-			RID region = E->get()[i];
-			if (!region.is_valid()) {
-				continue;
-			}
-			NavigationServer2D::get_singleton()->free(region);
-		}
-	}
-	p_quadrant->navigation_regions.clear();
-}
-
-void TileSetPluginAtlasNavigation::draw_quadrant_debug(TileMap *p_tile_map, TileMapQuadrant *p_quadrant) {
-	// Draw the debug collision shapes.
-	Ref<TileSet> tile_set = p_tile_map->get_tileset();
-	ERR_FAIL_COND(!tile_set.is_valid());
-
-	if (!p_tile_map->get_tree()) {
-		return;
-	}
-
-	bool show_navigation = false;
-	switch (p_tile_map->get_navigation_visibility_mode()) {
-		case TileMap::VISIBILITY_MODE_DEFAULT:
-			show_navigation = !Engine::get_singleton()->is_editor_hint() && (p_tile_map->get_tree() && p_tile_map->get_tree()->is_debugging_navigation_hint());
-			break;
-		case TileMap::VISIBILITY_MODE_FORCE_HIDE:
-			show_navigation = false;
-			break;
-		case TileMap::VISIBILITY_MODE_FORCE_SHOW:
-			show_navigation = true;
-			break;
-	}
-	if (!show_navigation) {
-		return;
-	}
-
-	RenderingServer *rs = RenderingServer::get_singleton();
-
-	Color color = p_tile_map->get_tree()->get_debug_navigation_color();
-	RandomPCG rand;
-
-	Vector2 quadrant_pos = p_tile_map->map_to_world(p_quadrant->coords * p_tile_map->get_effective_quadrant_size());
-
-	for (Set<Vector2i>::Element *E_cell = p_quadrant->cells.front(); E_cell; E_cell = E_cell->next()) {
-		TileMapCell c = p_tile_map->get_cell(E_cell->get(), true);
-
-		TileSetSource *source;
-		if (tile_set->has_source(c.source_id)) {
-			source = *tile_set->get_source(c.source_id);
-
-			if (!source->has_tile(c.get_atlas_coords()) || !source->has_alternative_tile(c.get_atlas_coords(), c.alternative_tile)) {
-				continue;
-			}
-
-			TileSetAtlasSource *atlas_source = Object::cast_to<TileSetAtlasSource>(source);
-			if (atlas_source) {
-				TileData *tile_data = Object::cast_to<TileData>(atlas_source->get_tile_data(c.get_atlas_coords(), c.alternative_tile));
-
-				Transform2D xform;
-				xform.set_origin(p_tile_map->map_to_world(E_cell->get()) - quadrant_pos);
-				rs->canvas_item_add_set_transform(p_quadrant->debug_canvas_item, xform);
-
-				for (int layer_index = 0; layer_index < tile_set->get_navigation_layers_count(); layer_index++) {
-					Ref<NavigationPolygon> navpoly = tile_data->get_navigation_polygon(layer_index);
-					if (navpoly.is_valid()) {
-						PackedVector2Array navigation_polygon_vertices = navpoly->get_vertices();
-
-						for (int i = 0; i < navpoly->get_polygon_count(); i++) {
-							// An array of vertices for this polygon.
-							Vector<int> polygon = navpoly->get_polygon(i);
-							Vector<Vector2> vertices;
-							vertices.resize(polygon.size());
-							for (int j = 0; j < polygon.size(); j++) {
-								ERR_FAIL_INDEX(polygon[j], navigation_polygon_vertices.size());
-								vertices.write[j] = navigation_polygon_vertices[polygon[j]];
-							}
-
-							// Generate the polygon color, slightly randomly modified from the settings one.
-							Color random_variation_color;
-							random_variation_color.set_hsv(color.get_h() + rand.random(-1.0, 1.0) * 0.05, color.get_s(), color.get_v() + rand.random(-1.0, 1.0) * 0.1);
-							random_variation_color.a = color.a;
-							Vector<Color> colors;
-							colors.push_back(random_variation_color);
-
-							rs->canvas_item_add_polygon(p_quadrant->debug_canvas_item, vertices, colors);
-						}
-					}
-				}
-			}
-		}
-	}
-}
-
-/////////////////////////////// TileSetPluginScenesCollections //////////////////////////////////////
-
-void TileSetPluginScenesCollections::update_dirty_quadrants(TileMap *p_tile_map, SelfList<TileMapQuadrant>::List &r_dirty_quadrant_list) {
-	Ref<TileSet> tile_set = p_tile_map->get_tileset();
-	ERR_FAIL_COND(!tile_set.is_valid());
-
-	SelfList<TileMapQuadrant> *q_list_element = r_dirty_quadrant_list.first();
-	while (q_list_element) {
-		TileMapQuadrant &q = *q_list_element->self();
-
-		// Clear the scenes.
-		for (Map<Vector2i, String>::Element *E = q.scenes.front(); E; E = E->next()) {
-			Node *node = p_tile_map->get_node(E->get());
-			if (node) {
-				node->queue_delete();
-			}
-		}
-
-		q.scenes.clear();
-
-		// Recreate the scenes.
-		for (Set<Vector2i>::Element *E_cell = q.cells.front(); E_cell; E_cell = E_cell->next()) {
-			const TileMapCell &c = p_tile_map->get_cell(E_cell->get(), true);
-
-			TileSetSource *source;
-			if (tile_set->has_source(c.source_id)) {
-				source = *tile_set->get_source(c.source_id);
-
-				if (!source->has_tile(c.get_atlas_coords()) || !source->has_alternative_tile(c.get_atlas_coords(), c.alternative_tile)) {
-					continue;
-				}
-
-				TileSetScenesCollectionSource *scenes_collection_source = Object::cast_to<TileSetScenesCollectionSource>(source);
-				if (scenes_collection_source) {
-					Ref<PackedScene> packed_scene = scenes_collection_source->get_scene_tile_scene(c.alternative_tile);
-					if (packed_scene.is_valid()) {
-						Node *scene = packed_scene->instantiate();
-						p_tile_map->add_child(scene);
-						Control *scene_as_control = Object::cast_to<Control>(scene);
-						Node2D *scene_as_node2d = Object::cast_to<Node2D>(scene);
-						if (scene_as_control) {
-							scene_as_control->set_position(p_tile_map->map_to_world(E_cell->get()) + scene_as_control->get_position());
-						} else if (scene_as_node2d) {
-							Transform2D xform;
-							xform.set_origin(p_tile_map->map_to_world(E_cell->get()));
-							scene_as_node2d->set_transform(xform * scene_as_node2d->get_transform());
-						}
-						q.scenes[E_cell->get()] = scene->get_name();
-					}
-				}
-			}
-		}
-
-		q_list_element = q_list_element->next();
-	}
-}
-
-void TileSetPluginScenesCollections::cleanup_quadrant(TileMap *p_tile_map, TileMapQuadrant *p_quadrant) {
-	// Clear the scenes.
-	for (Map<Vector2i, String>::Element *E = p_quadrant->scenes.front(); E; E = E->next()) {
-		Node *node = p_tile_map->get_node(E->get());
-		if (node) {
-			node->queue_delete();
-		}
-	}
-
-	p_quadrant->scenes.clear();
-}
-
-void TileSetPluginScenesCollections::draw_quadrant_debug(TileMap *p_tile_map, TileMapQuadrant *p_quadrant) {
-	Ref<TileSet> tile_set = p_tile_map->get_tileset();
-	ERR_FAIL_COND(!tile_set.is_valid());
-
-	if (!Engine::get_singleton()->is_editor_hint()) {
-		return;
-	}
-
-	// Draw a placeholder for scenes needing one.
-	RenderingServer *rs = RenderingServer::get_singleton();
-	Vector2 quadrant_pos = p_tile_map->map_to_world(p_quadrant->coords * p_tile_map->get_effective_quadrant_size());
-	for (Set<Vector2i>::Element *E_cell = p_quadrant->cells.front(); E_cell; E_cell = E_cell->next()) {
-		const TileMapCell &c = p_tile_map->get_cell(E_cell->get(), true);
-
-		TileSetSource *source;
-		if (tile_set->has_source(c.source_id)) {
-			source = *tile_set->get_source(c.source_id);
-
-			if (!source->has_tile(c.get_atlas_coords()) || !source->has_alternative_tile(c.get_atlas_coords(), c.alternative_tile)) {
-				continue;
-			}
-
-			TileSetScenesCollectionSource *scenes_collection_source = Object::cast_to<TileSetScenesCollectionSource>(source);
-			if (scenes_collection_source) {
-				if (!scenes_collection_source->get_scene_tile_scene(c.alternative_tile).is_valid() || scenes_collection_source->get_scene_tile_display_placeholder(c.alternative_tile)) {
-					// Generate a random color from the hashed values of the tiles.
-					Array to_hash;
-					to_hash.push_back(c.source_id);
-					to_hash.push_back(c.alternative_tile);
-					uint32_t hash = RandomPCG(to_hash.hash()).rand();
-
-					Color color;
-					color = color.from_hsv(
-							(float)((hash >> 24) & 0xFF) / 256.0,
-							Math::lerp(0.5, 1.0, (float)((hash >> 16) & 0xFF) / 256.0),
-							Math::lerp(0.5, 1.0, (float)((hash >> 8) & 0xFF) / 256.0),
-							0.8);
-
-					// Draw a placeholder tile.
-					Transform2D xform;
-					xform.set_origin(p_tile_map->map_to_world(E_cell->get()) - quadrant_pos);
-					rs->canvas_item_add_set_transform(p_quadrant->debug_canvas_item, xform);
-					rs->canvas_item_add_circle(p_quadrant->debug_canvas_item, Vector2(), MIN(tile_set->get_tile_size().x, tile_set->get_tile_size().y) / 4.0, color);
-				}
-			}
-		}
-	}
-}
diff --git a/scene/resources/tile_set.h b/scene/resources/tile_set.h
index 0a07981171..35e6999d13 100644
--- a/scene/resources/tile_set.h
+++ b/scene/resources/tile_set.h
@@ -191,7 +191,6 @@ private:
 	Vector2 tile_skew = Vector2(0, 0);
 
 	// Rendering.
-	bool y_sorting = false;
 	bool uv_clipping = false;
 	struct OcclusionLayer {
 		uint32_t light_mask = 1;
@@ -245,9 +244,6 @@ private:
 	int next_source_id = 0;
 	// ---------------------
 
-	// Plugins themselves.
-	Vector<TileSetPlugin *> tile_set_plugins_vector;
-
 	void _compute_next_source_id();
 	void _source_changed();
 
@@ -299,9 +295,6 @@ public:
 	Ref<TileSetSource> get_source(int p_source_id) const;
 
 	// Rendering
-	void set_y_sorting(bool p_y_sort);
-	bool is_y_sorting() const;
-
 	void set_uv_clipping(bool p_uv_clipping);
 	bool is_uv_clipping() const;
 
@@ -666,73 +659,6 @@ public:
 	Variant get_custom_data_by_layer_id(int p_layer_id) const;
 };
 
-#include "scene/2d/tile_map.h"
-
-class TileSetPlugin : public Object {
-	GDCLASS(TileSetPlugin, Object);
-
-public:
-	// Tilemap updates.
-	virtual void tilemap_notification(TileMap *p_tile_map, int p_what){};
-	virtual void update_dirty_quadrants(TileMap *p_tile_map, SelfList<TileMapQuadrant>::List &r_dirty_quadrant_list){};
-	virtual void create_quadrant(TileMap *p_tile_map, TileMapQuadrant *p_quadrant){};
-	virtual void cleanup_quadrant(TileMap *p_tile_map, TileMapQuadrant *p_quadrant){};
-
-	virtual void draw_quadrant_debug(TileMap *p_tile_map, TileMapQuadrant *p_quadrant){};
-};
-
-class TileSetPluginAtlasRendering : public TileSetPlugin {
-	GDCLASS(TileSetPluginAtlasRendering, TileSetPlugin);
-
-private:
-	static constexpr float fp_adjust = 0.00001;
-	bool quadrant_order_dirty = false;
-
-public:
-	// Tilemap updates
-	virtual void tilemap_notification(TileMap *p_tile_map, int p_what) override;
-	virtual void update_dirty_quadrants(TileMap *p_tile_map, SelfList<TileMapQuadrant>::List &r_dirty_quadrant_list) override;
-	virtual void create_quadrant(TileMap *p_tile_map, TileMapQuadrant *p_quadrant) override;
-	virtual void cleanup_quadrant(TileMap *p_tile_map, TileMapQuadrant *p_quadrant) override;
-	virtual void draw_quadrant_debug(TileMap *p_tile_map, TileMapQuadrant *p_quadrant) override;
-
-	// Other.
-	static void draw_tile(RID p_canvas_item, Vector2i p_position, const Ref<TileSet> p_tile_set, int p_atlas_source_id, Vector2i p_atlas_coords, int p_alternative_tile, Color p_modulation = Color(1.0, 1.0, 1.0, 1.0));
-};
-
-class TileSetPluginAtlasPhysics : public TileSetPlugin {
-	GDCLASS(TileSetPluginAtlasPhysics, TileSetPlugin);
-
-public:
-	// Tilemap updates
-	virtual void tilemap_notification(TileMap *p_tile_map, int p_what) override;
-	virtual void update_dirty_quadrants(TileMap *p_tile_map, SelfList<TileMapQuadrant>::List &r_dirty_quadrant_list) override;
-	virtual void create_quadrant(TileMap *p_tile_map, TileMapQuadrant *p_quadrant) override;
-	virtual void cleanup_quadrant(TileMap *p_tile_map, TileMapQuadrant *p_quadrant) override;
-	virtual void draw_quadrant_debug(TileMap *p_tile_map, TileMapQuadrant *p_quadrant) override;
-};
-
-class TileSetPluginAtlasNavigation : public TileSetPlugin {
-	GDCLASS(TileSetPluginAtlasNavigation, TileSetPlugin);
-
-public:
-	// Tilemap updates
-	virtual void tilemap_notification(TileMap *p_tile_map, int p_what) override;
-	virtual void update_dirty_quadrants(TileMap *p_tile_map, SelfList<TileMapQuadrant>::List &r_dirty_quadrant_list) override;
-	virtual void cleanup_quadrant(TileMap *p_tile_map, TileMapQuadrant *p_quadrant) override;
-	virtual void draw_quadrant_debug(TileMap *p_tile_map, TileMapQuadrant *p_quadrant) override;
-};
-
-class TileSetPluginScenesCollections : public TileSetPlugin {
-	GDCLASS(TileSetPluginScenesCollections, TileSetPlugin);
-
-public:
-	// Tilemap updates
-	virtual void update_dirty_quadrants(TileMap *p_tile_map, SelfList<TileMapQuadrant>::List &r_dirty_quadrant_list) override;
-	virtual void cleanup_quadrant(TileMap *p_tile_map, TileMapQuadrant *p_quadrant) override;
-	virtual void draw_quadrant_debug(TileMap *p_tile_map, TileMapQuadrant *p_quadrant) override;
-};
-
 VARIANT_ENUM_CAST(TileSet::CellNeighbor);
 VARIANT_ENUM_CAST(TileSet::TerrainMode);
 VARIANT_ENUM_CAST(TileSet::TileShape);
diff --git a/scene/resources/visual_shader.cpp b/scene/resources/visual_shader.cpp
index 7292728251..a23152a6d1 100644
--- a/scene/resources/visual_shader.cpp
+++ b/scene/resources/visual_shader.cpp
@@ -451,18 +451,29 @@ VisualShader::Type VisualShader::get_shader_type() const {
 	return current_type;
 }
 
-void VisualShader::set_version(const String &p_version) {
-	version = p_version;
+void VisualShader::set_engine_version(const Dictionary &p_engine_version) {
+	ERR_FAIL_COND(!p_engine_version.has("major"));
+	ERR_FAIL_COND(!p_engine_version.has("minor"));
+	engine_version["major"] = p_engine_version["major"];
+	engine_version["minor"] = p_engine_version["minor"];
 }
 
-String VisualShader::get_version() const {
-	return version;
+Dictionary VisualShader::get_engine_version() const {
+	return engine_version;
 }
 
-void VisualShader::update_version(const String &p_new_version) {
-	if (version == "") {
+#ifndef DISABLE_DEPRECATED
+
+void VisualShader::update_engine_version(const Dictionary &p_new_version) {
+	if (engine_version.is_empty()) { // before 4.0
 		for (int i = 0; i < TYPE_MAX; i++) {
 			for (Map<int, Node>::Element *E = graph[i].nodes.front(); E; E = E->next()) {
+				Ref<VisualShaderNodeInput> input = Object::cast_to<VisualShaderNodeInput>(E->get().node.ptr());
+				if (input.is_valid()) {
+					if (input->get_input_name() == "side") {
+						input->set_input_name("front_facing");
+					}
+				}
 				Ref<VisualShaderNodeExpression> expression = Object::cast_to<VisualShaderNodeExpression>(E->get().node.ptr());
 				if (expression.is_valid()) {
 					for (int j = 0; j < expression->get_input_port_count(); j++) {
@@ -491,9 +502,11 @@ void VisualShader::update_version(const String &p_new_version) {
 			}
 		}
 	}
-	set_version(p_new_version);
+	set_engine_version(p_new_version);
 }
 
+#endif /* DISABLE_DEPRECATED */
+
 void VisualShader::add_node(Type p_type, const Ref<VisualShaderNode> &p_node, const Vector2 &p_position, int p_id) {
 	ERR_FAIL_COND(p_node.is_null());
 	ERR_FAIL_COND(p_id < 2);
@@ -2007,8 +2020,8 @@ void VisualShader::_bind_methods() {
 
 	ClassDB::bind_method(D_METHOD("get_node_connections", "type"), &VisualShader::_get_node_connections);
 
-	ClassDB::bind_method(D_METHOD("set_version", "version"), &VisualShader::set_version);
-	ClassDB::bind_method(D_METHOD("get_version"), &VisualShader::get_version);
+	ClassDB::bind_method(D_METHOD("set_engine_version", "version"), &VisualShader::set_engine_version);
+	ClassDB::bind_method(D_METHOD("get_engine_version"), &VisualShader::get_engine_version);
 
 	ClassDB::bind_method(D_METHOD("set_graph_offset", "offset"), &VisualShader::set_graph_offset);
 	ClassDB::bind_method(D_METHOD("get_graph_offset"), &VisualShader::get_graph_offset);
@@ -2016,7 +2029,7 @@ void VisualShader::_bind_methods() {
 	ClassDB::bind_method(D_METHOD("_update_shader"), &VisualShader::_update_shader);
 
 	ADD_PROPERTY(PropertyInfo(Variant::VECTOR2, "graph_offset", PROPERTY_HINT_NONE, "", PROPERTY_USAGE_NOEDITOR), "set_graph_offset", "get_graph_offset");
-	ADD_PROPERTY(PropertyInfo(Variant::STRING, "version", PROPERTY_HINT_NONE, "", PROPERTY_USAGE_NOEDITOR), "set_version", "get_version");
+	ADD_PROPERTY(PropertyInfo(Variant::STRING, "engine_version", PROPERTY_HINT_NONE, "", PROPERTY_USAGE_NOEDITOR), "set_engine_version", "get_engine_version");
 
 	ADD_PROPERTY_DEFAULT("code", ""); // Inherited from Shader, prevents showing default code as override in docs.
 
@@ -2059,7 +2072,9 @@ VisualShader::VisualShader() {
 ///////////////////////////////////////////////////////////
 
 const VisualShaderNodeInput::Port VisualShaderNodeInput::ports[] = {
-	// Spatial, Vertex
+	// Node3D
+
+	// Node3D, Vertex
 	{ Shader::MODE_SPATIAL, VisualShader::TYPE_VERTEX, VisualShaderNode::PORT_TYPE_VECTOR, "vertex", "VERTEX" },
 	{ Shader::MODE_SPATIAL, VisualShader::TYPE_VERTEX, VisualShaderNode::PORT_TYPE_VECTOR, "normal", "NORMAL" },
 	{ Shader::MODE_SPATIAL, VisualShader::TYPE_VERTEX, VisualShaderNode::PORT_TYPE_VECTOR, "tangent", "TANGENT" },
@@ -2069,6 +2084,10 @@ const VisualShaderNodeInput::Port VisualShaderNodeInput::ports[] = {
 	{ Shader::MODE_SPATIAL, VisualShader::TYPE_VERTEX, VisualShaderNode::PORT_TYPE_VECTOR, "color", "COLOR.rgb" },
 	{ Shader::MODE_SPATIAL, VisualShader::TYPE_VERTEX, VisualShaderNode::PORT_TYPE_SCALAR, "alpha", "COLOR.a" },
 	{ Shader::MODE_SPATIAL, VisualShader::TYPE_VERTEX, VisualShaderNode::PORT_TYPE_SCALAR, "point_size", "POINT_SIZE" },
+	{ Shader::MODE_SPATIAL, VisualShader::TYPE_VERTEX, VisualShaderNode::PORT_TYPE_SCALAR_INT, "instance_id", "INSTANCE_ID" },
+	{ Shader::MODE_SPATIAL, VisualShader::TYPE_VERTEX, VisualShaderNode::PORT_TYPE_VECTOR, "instance_custom", "INSTANCE_CUSTOM.rgb" },
+	{ Shader::MODE_SPATIAL, VisualShader::TYPE_VERTEX, VisualShaderNode::PORT_TYPE_SCALAR, "instance_custom_alpha", "INSTANCE_CUSTOM.a" },
+	{ Shader::MODE_SPATIAL, VisualShader::TYPE_VERTEX, VisualShaderNode::PORT_TYPE_SCALAR, "roughness", "ROUGHNESS" },
 	{ Shader::MODE_SPATIAL, VisualShader::TYPE_VERTEX, VisualShaderNode::PORT_TYPE_TRANSFORM, "world", "WORLD_MATRIX" },
 	{ Shader::MODE_SPATIAL, VisualShader::TYPE_VERTEX, VisualShaderNode::PORT_TYPE_TRANSFORM, "modelview", "MODELVIEW_MATRIX" },
 	{ Shader::MODE_SPATIAL, VisualShader::TYPE_VERTEX, VisualShaderNode::PORT_TYPE_TRANSFORM, "camera", "CAMERA_MATRIX" },
@@ -2079,7 +2098,7 @@ const VisualShaderNodeInput::Port VisualShaderNodeInput::ports[] = {
 	{ Shader::MODE_SPATIAL, VisualShader::TYPE_VERTEX, VisualShaderNode::PORT_TYPE_VECTOR, "viewport_size", "vec3(VIEWPORT_SIZE, 0)" },
 	{ Shader::MODE_SPATIAL, VisualShader::TYPE_VERTEX, VisualShaderNode::PORT_TYPE_BOOLEAN, "output_is_srgb", "OUTPUT_IS_SRGB" },
 
-	// Spatial, Fragment
+	// Node3D, Fragment
 	{ Shader::MODE_SPATIAL, VisualShader::TYPE_FRAGMENT, VisualShaderNode::PORT_TYPE_VECTOR, "fragcoord", "FRAGCOORD.xyz" },
 	{ Shader::MODE_SPATIAL, VisualShader::TYPE_FRAGMENT, VisualShaderNode::PORT_TYPE_VECTOR, "vertex", "VERTEX" },
 	{ Shader::MODE_SPATIAL, VisualShader::TYPE_FRAGMENT, VisualShaderNode::PORT_TYPE_VECTOR, "normal", "NORMAL" },
@@ -2092,7 +2111,6 @@ const VisualShaderNodeInput::Port VisualShaderNodeInput::ports[] = {
 	{ Shader::MODE_SPATIAL, VisualShader::TYPE_FRAGMENT, VisualShaderNode::PORT_TYPE_SCALAR, "alpha", "COLOR.a" },
 	{ Shader::MODE_SPATIAL, VisualShader::TYPE_FRAGMENT, VisualShaderNode::PORT_TYPE_VECTOR, "point_coord", "vec3(POINT_COORD, 0.0)" },
 	{ Shader::MODE_SPATIAL, VisualShader::TYPE_FRAGMENT, VisualShaderNode::PORT_TYPE_VECTOR, "screen_uv", "vec3(SCREEN_UV, 0.0)" },
-	{ Shader::MODE_SPATIAL, VisualShader::TYPE_FRAGMENT, VisualShaderNode::PORT_TYPE_SCALAR, "side", "float(FRONT_FACING ? 1.0 : 0.0)" },
 	{ Shader::MODE_SPATIAL, VisualShader::TYPE_FRAGMENT, VisualShaderNode::PORT_TYPE_TRANSFORM, "world", "WORLD_MATRIX" },
 	{ Shader::MODE_SPATIAL, VisualShader::TYPE_FRAGMENT, VisualShaderNode::PORT_TYPE_TRANSFORM, "inv_camera", "INV_CAMERA_MATRIX" },
 	{ Shader::MODE_SPATIAL, VisualShader::TYPE_FRAGMENT, VisualShaderNode::PORT_TYPE_TRANSFORM, "camera", "CAMERA_MATRIX" },
@@ -2103,11 +2121,14 @@ const VisualShaderNodeInput::Port VisualShaderNodeInput::ports[] = {
 	{ Shader::MODE_SPATIAL, VisualShader::TYPE_FRAGMENT, VisualShaderNode::PORT_TYPE_BOOLEAN, "output_is_srgb", "OUTPUT_IS_SRGB" },
 	{ Shader::MODE_SPATIAL, VisualShader::TYPE_FRAGMENT, VisualShaderNode::PORT_TYPE_BOOLEAN, "front_facing", "FRONT_FACING" },
 	{ Shader::MODE_SPATIAL, VisualShader::TYPE_FRAGMENT, VisualShaderNode::PORT_TYPE_SAMPLER, "screen_texture", "SCREEN_TEXTURE" },
+	{ Shader::MODE_SPATIAL, VisualShader::TYPE_FRAGMENT, VisualShaderNode::PORT_TYPE_SAMPLER, "normal_roughness_texture", "NORMAL_ROUGHNESS_TEXTURE" },
 	{ Shader::MODE_SPATIAL, VisualShader::TYPE_FRAGMENT, VisualShaderNode::PORT_TYPE_SAMPLER, "depth_texture", "DEPTH_TEXTURE" },
 
-	// Spatial, Light
+	// Node3D, Light
 	{ Shader::MODE_SPATIAL, VisualShader::TYPE_LIGHT, VisualShaderNode::PORT_TYPE_VECTOR, "fragcoord", "FRAGCOORD.xyz" },
 	{ Shader::MODE_SPATIAL, VisualShader::TYPE_LIGHT, VisualShaderNode::PORT_TYPE_VECTOR, "normal", "NORMAL" },
+	{ Shader::MODE_SPATIAL, VisualShader::TYPE_LIGHT, VisualShaderNode::PORT_TYPE_VECTOR, "uv", "vec3(UV, 0.0)" },
+	{ Shader::MODE_SPATIAL, VisualShader::TYPE_LIGHT, VisualShaderNode::PORT_TYPE_VECTOR, "uv2", "vec3(UV2, 0.0)" },
 	{ Shader::MODE_SPATIAL, VisualShader::TYPE_LIGHT, VisualShaderNode::PORT_TYPE_VECTOR, "view", "VIEW" },
 	{ Shader::MODE_SPATIAL, VisualShader::TYPE_LIGHT, VisualShaderNode::PORT_TYPE_VECTOR, "light", "LIGHT" },
 	{ Shader::MODE_SPATIAL, VisualShader::TYPE_LIGHT, VisualShaderNode::PORT_TYPE_VECTOR, "light_color", "LIGHT_COLOR" },
@@ -2127,6 +2148,8 @@ const VisualShaderNodeInput::Port VisualShaderNodeInput::ports[] = {
 	{ Shader::MODE_SPATIAL, VisualShader::TYPE_LIGHT, VisualShaderNode::PORT_TYPE_VECTOR, "viewport_size", "vec3(VIEWPORT_SIZE, 0.0)" },
 	{ Shader::MODE_SPATIAL, VisualShader::TYPE_LIGHT, VisualShaderNode::PORT_TYPE_BOOLEAN, "output_is_srgb", "OUTPUT_IS_SRGB" },
 
+	// Canvas Item
+
 	// Canvas Item, Vertex
 	{ Shader::MODE_CANVAS_ITEM, VisualShader::TYPE_VERTEX, VisualShaderNode::PORT_TYPE_VECTOR, "vertex", "vec3(VERTEX, 0.0)" },
 	{ Shader::MODE_CANVAS_ITEM, VisualShader::TYPE_VERTEX, VisualShaderNode::PORT_TYPE_VECTOR, "uv", "vec3(UV, 0.0)" },
@@ -2139,6 +2162,8 @@ const VisualShaderNodeInput::Port VisualShaderNodeInput::ports[] = {
 	{ Shader::MODE_CANVAS_ITEM, VisualShader::TYPE_VERTEX, VisualShaderNode::PORT_TYPE_TRANSFORM, "screen", "SCREEN_MATRIX" },
 	{ Shader::MODE_CANVAS_ITEM, VisualShader::TYPE_VERTEX, VisualShaderNode::PORT_TYPE_SCALAR, "time", "TIME" },
 	{ Shader::MODE_CANVAS_ITEM, VisualShader::TYPE_VERTEX, VisualShaderNode::PORT_TYPE_BOOLEAN, "at_light_pass", "AT_LIGHT_PASS" },
+	{ Shader::MODE_CANVAS_ITEM, VisualShader::TYPE_VERTEX, VisualShaderNode::PORT_TYPE_VECTOR, "instance_custom", "INSTANCE_CUSTOM.rgb" },
+	{ Shader::MODE_CANVAS_ITEM, VisualShader::TYPE_VERTEX, VisualShaderNode::PORT_TYPE_SCALAR, "instance_custom_alpha", "INSTANCE_CUSTOM.a" },
 
 	// Canvas Item, Fragment
 	{ Shader::MODE_CANVAS_ITEM, VisualShader::TYPE_FRAGMENT, VisualShaderNode::PORT_TYPE_VECTOR, "fragcoord", "FRAGCOORD.xyz" },
@@ -2157,6 +2182,7 @@ const VisualShaderNodeInput::Port VisualShaderNodeInput::ports[] = {
 	{ Shader::MODE_CANVAS_ITEM, VisualShader::TYPE_FRAGMENT, VisualShaderNode::PORT_TYPE_VECTOR, "specular_shininess", "SPECULAR_SHININESS.rgb" },
 	{ Shader::MODE_CANVAS_ITEM, VisualShader::TYPE_FRAGMENT, VisualShaderNode::PORT_TYPE_SCALAR, "specular_shininess_alpha", "SPECULAR_SHININESS.a" },
 	{ Shader::MODE_CANVAS_ITEM, VisualShader::TYPE_FRAGMENT, VisualShaderNode::PORT_TYPE_SAMPLER, "specular_shininess_texture", "SPECULAR_SHININESS_TEXTURE" },
+	{ Shader::MODE_CANVAS_ITEM, VisualShader::TYPE_FRAGMENT, VisualShaderNode::PORT_TYPE_VECTOR, "vertex", "vec3(VERTEX, 0.0)" },
 
 	// Canvas Item, Light
 	{ Shader::MODE_CANVAS_ITEM, VisualShader::TYPE_LIGHT, VisualShaderNode::PORT_TYPE_VECTOR, "fragcoord", "FRAGCOORD.xyz" },
@@ -2170,7 +2196,7 @@ const VisualShaderNodeInput::Port VisualShaderNodeInput::ports[] = {
 	{ Shader::MODE_CANVAS_ITEM, VisualShader::TYPE_LIGHT, VisualShaderNode::PORT_TYPE_SCALAR, "light_color_alpha", "LIGHT_COLOR.a" },
 	{ Shader::MODE_CANVAS_ITEM, VisualShader::TYPE_LIGHT, VisualShaderNode::PORT_TYPE_VECTOR, "light_position", "LIGHT_POSITION" },
 	{ Shader::MODE_CANVAS_ITEM, VisualShader::TYPE_LIGHT, VisualShaderNode::PORT_TYPE_VECTOR, "light_vertex", "LIGHT_VERTEX" },
-	{ Shader::MODE_CANVAS_ITEM, VisualShader::TYPE_LIGHT, VisualShaderNode::PORT_TYPE_VECTOR, "shadow_color", "SHADOW_MODULATE.rgb" },
+	{ Shader::MODE_CANVAS_ITEM, VisualShader::TYPE_LIGHT, VisualShaderNode::PORT_TYPE_VECTOR, "shadow", "SHADOW_MODULATE.rgb" },
 	{ Shader::MODE_CANVAS_ITEM, VisualShader::TYPE_LIGHT, VisualShaderNode::PORT_TYPE_SCALAR, "shadow_alpha", "SHADOW_MODULATE.a" },
 	{ Shader::MODE_CANVAS_ITEM, VisualShader::TYPE_LIGHT, VisualShaderNode::PORT_TYPE_VECTOR, "screen_uv", "vec3(SCREEN_UV, 0.0)" },
 	{ Shader::MODE_CANVAS_ITEM, VisualShader::TYPE_LIGHT, VisualShaderNode::PORT_TYPE_VECTOR, "texture_pixel_size", "vec3(TEXTURE_PIXEL_SIZE, 1.0)" },
@@ -2810,7 +2836,11 @@ VisualShaderNodeUniformRef::VisualShaderNodeUniformRef() {
 ////////////////////////////////////////////
 
 const VisualShaderNodeOutput::Port VisualShaderNodeOutput::ports[] = {
-	// Spatial, Vertex
+	////////////////////////////////////////////////////////////////////////
+	// Node3D.
+	////////////////////////////////////////////////////////////////////////
+	// Node3D, Vertex.
+	////////////////////////////////////////////////////////////////////////
 	{ Shader::MODE_SPATIAL, VisualShader::TYPE_VERTEX, VisualShaderNode::PORT_TYPE_VECTOR, "vertex", "VERTEX" },
 	{ Shader::MODE_SPATIAL, VisualShader::TYPE_VERTEX, VisualShaderNode::PORT_TYPE_VECTOR, "normal", "NORMAL" },
 	{ Shader::MODE_SPATIAL, VisualShader::TYPE_VERTEX, VisualShaderNode::PORT_TYPE_VECTOR, "tangent", "TANGENT" },
@@ -2821,9 +2851,9 @@ const VisualShaderNodeOutput::Port VisualShaderNodeOutput::ports[] = {
 	{ Shader::MODE_SPATIAL, VisualShader::TYPE_VERTEX, VisualShaderNode::PORT_TYPE_SCALAR, "alpha", "COLOR.a" },
 	{ Shader::MODE_SPATIAL, VisualShader::TYPE_VERTEX, VisualShaderNode::PORT_TYPE_SCALAR, "roughness", "ROUGHNESS" },
 	{ Shader::MODE_SPATIAL, VisualShader::TYPE_VERTEX, VisualShaderNode::PORT_TYPE_TRANSFORM, "model_view_matrix", "MODELVIEW_MATRIX" },
-
-	// Spatial, Fragment
-
+	////////////////////////////////////////////////////////////////////////
+	// Node3D, Fragment.
+	////////////////////////////////////////////////////////////////////////
 	{ Shader::MODE_SPATIAL, VisualShader::TYPE_FRAGMENT, VisualShaderNode::PORT_TYPE_VECTOR, "albedo", "ALBEDO" },
 	{ Shader::MODE_SPATIAL, VisualShader::TYPE_FRAGMENT, VisualShaderNode::PORT_TYPE_SCALAR, "alpha", "ALPHA" },
 	{ Shader::MODE_SPATIAL, VisualShader::TYPE_FRAGMENT, VisualShaderNode::PORT_TYPE_SCALAR, "metallic", "METALLIC" },
@@ -2847,29 +2877,48 @@ const VisualShaderNodeOutput::Port VisualShaderNodeOutput::ports[] = {
 
 	{ Shader::MODE_SPATIAL, VisualShader::TYPE_FRAGMENT, VisualShaderNode::PORT_TYPE_SCALAR, "alpha_scissor_threshold", "ALPHA_SCISSOR_THRESHOLD" },
 	{ Shader::MODE_SPATIAL, VisualShader::TYPE_FRAGMENT, VisualShaderNode::PORT_TYPE_SCALAR, "ao_light_affect", "AO_LIGHT_AFFECT" },
-
-	// Spatial, Light
+	////////////////////////////////////////////////////////////////////////
+	// Node3D, Light.
+	////////////////////////////////////////////////////////////////////////
 	{ Shader::MODE_SPATIAL, VisualShader::TYPE_LIGHT, VisualShaderNode::PORT_TYPE_VECTOR, "diffuse", "DIFFUSE_LIGHT" },
 	{ Shader::MODE_SPATIAL, VisualShader::TYPE_LIGHT, VisualShaderNode::PORT_TYPE_VECTOR, "specular", "SPECULAR_LIGHT" },
-	// Canvas Item, Vertex
+	{ Shader::MODE_SPATIAL, VisualShader::TYPE_LIGHT, VisualShaderNode::PORT_TYPE_SCALAR, "alpha", "ALPHA" },
+
+	////////////////////////////////////////////////////////////////////////
+	// Canvas Item.
+	////////////////////////////////////////////////////////////////////////
+	// Canvas Item, Vertex.
+	////////////////////////////////////////////////////////////////////////
 	{ Shader::MODE_CANVAS_ITEM, VisualShader::TYPE_VERTEX, VisualShaderNode::PORT_TYPE_VECTOR, "vertex", "VERTEX:xy" },
 	{ Shader::MODE_CANVAS_ITEM, VisualShader::TYPE_VERTEX, VisualShaderNode::PORT_TYPE_VECTOR, "uv", "UV:xy" },
 	{ Shader::MODE_CANVAS_ITEM, VisualShader::TYPE_VERTEX, VisualShaderNode::PORT_TYPE_VECTOR, "color", "COLOR.rgb" },
 	{ Shader::MODE_CANVAS_ITEM, VisualShader::TYPE_VERTEX, VisualShaderNode::PORT_TYPE_SCALAR, "alpha", "COLOR.a" },
-	// Canvas Item, Fragment
+	{ Shader::MODE_CANVAS_ITEM, VisualShader::TYPE_VERTEX, VisualShaderNode::PORT_TYPE_SCALAR, "point_size", "POINT_SIZE" },
+	////////////////////////////////////////////////////////////////////////
+	// Canvas Item, Fragment.
+	////////////////////////////////////////////////////////////////////////
 	{ Shader::MODE_CANVAS_ITEM, VisualShader::TYPE_FRAGMENT, VisualShaderNode::PORT_TYPE_VECTOR, "color", "COLOR.rgb" },
 	{ Shader::MODE_CANVAS_ITEM, VisualShader::TYPE_FRAGMENT, VisualShaderNode::PORT_TYPE_SCALAR, "alpha", "COLOR.a" },
 	{ Shader::MODE_CANVAS_ITEM, VisualShader::TYPE_FRAGMENT, VisualShaderNode::PORT_TYPE_VECTOR, "normal", "NORMAL" },
 	{ Shader::MODE_CANVAS_ITEM, VisualShader::TYPE_FRAGMENT, VisualShaderNode::PORT_TYPE_VECTOR, "normal_map", "NORMAL_MAP" },
 	{ Shader::MODE_CANVAS_ITEM, VisualShader::TYPE_FRAGMENT, VisualShaderNode::PORT_TYPE_SCALAR, "normal_map_depth", "NORMAL_MAP_DEPTH" },
-	// Canvas Item, Light
+	{ Shader::MODE_CANVAS_ITEM, VisualShader::TYPE_FRAGMENT, VisualShaderNode::PORT_TYPE_VECTOR, "light_vertex", "LIGHT_VERTEX" },
+	{ Shader::MODE_CANVAS_ITEM, VisualShader::TYPE_FRAGMENT, VisualShaderNode::PORT_TYPE_VECTOR, "shadow_vertex", "SHADOW_VERTEX:xy" },
+	////////////////////////////////////////////////////////////////////////
+	// Canvas Item, Light.
+	////////////////////////////////////////////////////////////////////////
 	{ Shader::MODE_CANVAS_ITEM, VisualShader::TYPE_LIGHT, VisualShaderNode::PORT_TYPE_VECTOR, "light", "LIGHT.rgb" },
 	{ Shader::MODE_CANVAS_ITEM, VisualShader::TYPE_LIGHT, VisualShaderNode::PORT_TYPE_SCALAR, "light_alpha", "LIGHT.a" },
 
-	// Sky, Sky
+	////////////////////////////////////////////////////////////////////////
+	// Sky, Sky.
+	////////////////////////////////////////////////////////////////////////
 	{ Shader::MODE_SKY, VisualShader::TYPE_SKY, VisualShaderNode::PORT_TYPE_VECTOR, "color", "COLOR" },
 	{ Shader::MODE_SKY, VisualShader::TYPE_SKY, VisualShaderNode::PORT_TYPE_SCALAR, "alpha", "ALPHA" },
+	{ Shader::MODE_SKY, VisualShader::TYPE_SKY, VisualShaderNode::PORT_TYPE_VECTOR, "fog", "FOG.rgb" },
+	{ Shader::MODE_SKY, VisualShader::TYPE_SKY, VisualShaderNode::PORT_TYPE_SCALAR, "fog_alpha", "FOG.a" },
 
+	////////////////////////////////////////////////////////////////////////
 	{ Shader::MODE_MAX, VisualShader::TYPE_MAX, VisualShaderNode::PORT_TYPE_TRANSFORM, nullptr, nullptr },
 };
 
diff --git a/scene/resources/visual_shader.h b/scene/resources/visual_shader.h
index 880c401b29..abf55185ab 100644
--- a/scene/resources/visual_shader.h
+++ b/scene/resources/visual_shader.h
@@ -44,7 +44,7 @@ class VisualShader : public Shader {
 
 	friend class VisualShaderNodeVersionChecker;
 
-	String version = "";
+	Dictionary engine_version;
 
 public:
 	enum Type {
@@ -137,10 +137,12 @@ public: // internal methods
 	Type get_shader_type() const;
 
 public:
-	void set_version(const String &p_version);
-	String get_version() const;
+	void set_engine_version(const Dictionary &p_version);
+	Dictionary get_engine_version() const;
 
-	void update_version(const String &p_new_version);
+#ifndef DISABLE_DEPRECATED
+	void update_engine_version(const Dictionary &p_new_version);
+#endif /* DISABLE_DEPRECATED */
 
 	enum {
 		NODE_ID_INVALID = -1,