Base class for GUI sliders. Base class for GUI sliders. [b]Note:[/b] The [signal Range.changed] and [signal Range.value_changed] signals are part of the [Range] class which this class inherits from. 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.