Add background to TabContainer's tabbar and editor docks

2 files changed, 5 insertions, 0 deletions

diff --git a/scene/gui/tab_container.cpp b/scene/gui/tab_container.cpp
index 10a6d18330..a981cda485 100644
--- a/scene/gui/tab_container.cpp
+++ b/scene/gui/tab_container.cpp
@@ -163,6 +163,10 @@ void TabContainer::_notification(int p_what) {
 
 			int header_height = _get_top_margin();
 
+			// Draw background for the tabbar.
+			Ref<StyleBox> tabbar_background = get_theme_stylebox(SNAME("tabbar_background"));
+			tabbar_background->draw(canvas, Rect2(0, 0, size.width, header_height));
+			// Draw the background for the tab's content.
 			panel->draw(canvas, Rect2(0, header_height, size.width, size.height - header_height));
 
 			// Draw the popup menu.
diff --git a/scene/resources/default_theme/default_theme.cpp b/scene/resources/default_theme/default_theme.cpp
index 410f35e597..73ad1ceff7 100644
--- a/scene/resources/default_theme/default_theme.cpp
+++ b/scene/resources/default_theme/default_theme.cpp
@@ -831,6 +831,7 @@ void fill_default_theme(Ref<Theme> &theme, const Ref<Font> &default_font, const
 	theme->set_stylebox("tab_unselected", "TabContainer", style_tab_unselected);
 	theme->set_stylebox("tab_disabled", "TabContainer", style_tab_disabled);
 	theme->set_stylebox("panel", "TabContainer", make_flat_stylebox(style_normal_color, 0, 0, 0, 0));
+	theme->set_stylebox("tabbar_background", "TabContainer", make_empty_stylebox(0, 0, 0, 0));
 
 	theme->set_icon("increment", "TabContainer", icons["scroll_button_right"]);
 	theme->set_icon("increment_highlight", "TabContainer", icons["scroll_button_right_hl"]);