Increasing reuse shading of hot buttons
 

Can anyone point me in the right direction as to how to edit the saturation/darkness shading of my hot buttons when they are "greyed" out and not ready for use? What I am wanting to accomplish is make the shading that is applied to the buttons much darker when the reuse timer has not expired so that is much easier to tell when an ability is ready to use.

Thank you very much.

thats actually a pretty good idea. I am using a 3/4 size hotbar, and it is alittle hard to tell what is ready to use and what is not. I don't know much about the XML yet, but that is one think I'll definetly be looking into.

Could it be Slot.MouseOverColor or ButtonLabel.BackgroundOpacity?