Base class for GUI sliders. Base class for GUI sliders. If [code]true[/code], the slider can be interacted with. If [code]false[/code], the value can be changed only by code. If [code]true[/code], the value can be changed using the mouse wheel. Number of ticks displayed on the slider, including border ticks. Ticks are uniformly-distributed value markers. If [code]true[/code], the slider will display ticks for minimum and maximum values.