Transparent an Image Color though a script

Questions & Answers
1

Game Object has an Image Attached to it. I tried

gameObject.GetComponent<Image>().color = new Color(255f, 255f, 255f, 50f);

and it wont change anything

anyone knows why?

2

Because Color is 0 to 1. If you want to do 0 to 255, use Color32.