MattBerry wrote:

Come on now! You know you've always wanted to put a movie on the surface of a button! Who hasn't?

If that's intended as sarcasm you miss the point: you can if your app needs it. Anything the graphics engine can do can be encorporated into your GUI. The look and feel of your app isn't limited by the imagination of some poor slob at Microsoft who, in times past, dictated the visual aspects of the button control. You have complete control.