How to darken color from code

[nubels]

Godot Version

4.3.dev3

Question

How can I achieve the same effect as sliding down this color ramp from code?

func darken() -> void:
	# make the color darker like in the slider
        canvas_modulate.color -= Vector4(0.1, 0.1, 0.1, 0) # something like this

[zeludtnecniv]

You can use one of this :

canvas_modulate.color.darkened(0.5);
canvas_modulate.color.lightened(0.5);

but to made it from only one value, it can be more difficult.

[nubels]

Ah thank you! I need to assign the new color, though.

@tool
class_name CanvasModulateTest 
extends CanvasModulate


@export var darken_buton: bool:
	get(): 
		return false
	set(value):
		color = color.darkened(0.5)