GUI Texture Darkening

Questions & Answers
1

I have GUI Texture that I want to become progressively darker (more black) over time. How do I do this?

2

You need to use Color.Lerp. This will work very nicely for you:

var startColor : Color = Color.gray;
var endColor : Color = Color.black;
var fadeSpeed : float = 0.5;

private var tex : GUITexture;

function Update () {
	tex = this.gameObject.GetComponent(GUITexture);
	tex.color = Color.Lerp(startColor, endColor, Time.time*fadeSpeed);
}