I prefer the dark skins, is easier on my eyes when working with images. but the sketches stamps are in black and difficult to see in the black background. it would be great if these stamps, and other black ones, showed with a slightly lighter background so they can be seen.
+1 I use a light interface but the same issue crops up with some of the controls ... white buttons on white are also hard to use. At some point they should make some adjustments to the interface to add contrast where needed