Well my Black skin from Decalgirl arrived today. It's defective.

Buttons does not align up right and now it's a mess after trying for hours. I Finally had to cut it places and it looks hideous but my K4 now has a black bezel. It may have helped a little on the text. It pops out a little better The K4 with a black bezel now looks even more dirty. I think I prefer grey over the dirty look.

The K3 wins the better contrast and clarity of screen. So while the gray bezel may give a more gray tint to the K4, I'm not sure a black bezel works any better because now it's muddled looking.
I paid $20 for this so it's staying. I sent Decalgirl an email asking for a replacement front piece. I read I have to pay for shipping even though it was their mistake.