Hey man, I know this isn't really what you were asking about, but I do have a suggestion from more of an aesthetic standpoint. You've got a lot of color on that CP overlay, and the buttons are multicolored as well. The buttons kinda get lost in the overlay, IMO.
If you're really hell-bent on using bright, multicolored buttons, you might think about taking down the intensity of the colors in the overlay a bit -- for example, you could use Photoshop to decrease the color saturation so that it washes the color out some (or just go grayscale) and the bright buttons will be much easier to pick up. If you'd prefer to have the more colorful overlay, though, you could keep the overlay as it is and just use black or gray buttons.
Just a suggestion, take it for what it's worth.