I've started putting together a Win7 skin, but due to limitations in the WB skinning engine the start menu won't skin properly.
As stated above, the start menu will not skin unless you have Start10, but even though I have it I can't get it to behave properly: for some reason the right side buttons on the start menu share font colour with the right side expanded start menu buttons, which makes one of them unreadable when the background is transparent black on one and opaque white on the other.
Furthermore, it's impossible to get the start orb to stick out on top of the taskbar. I've tried using two other start menu replacements, but one of them (ClassicStart, free) looks a bit meh, and the other one (StartIsBack++, not free), though amazing on its own, clashes with WB skinning, resulting in the taskbar and start menu being nigh unreadable.
I also have a bit of trouble with Google Chrome, trying to get the window glass border to cover the entire tabs area. I think it's doable as other skins manage to do that, but since I'm a beginner at this, I haven't quite figured it out yet.