[ubuntu-art] [Breathe] Shadowing

[Cory K.]

I've noticed our shadowing is a bit inconsistent lately.

I'm going to say that everything with a strait-on perspective needs to
have a have a top-down shadow. Except mimes where I feel its fine.

I'm sure there's also a few exceptions here where it makes a little
artistic sense but we should go back and review what's there and see
what should be changed.

I think the new webcam and the update manager icon are 2 I can quickly
think of. I'll review more myself today.


-Cory K.