Here are the 3 styles in the app. Sorry about the sizes, but I wanted to let everyone see them at "full" (800x480 anyway) size.
Black (flat):
Gradient:
Unified:
Me, I really like the gradient.
Note: The color on the Sample Plugin and iTunes buttons are off because they are images, not actual text. They will match the proper text color before all is said and done.
-dave