So yeah, I'm on a Mac Mini 1.42GHz w/ 512MB RAM on an Erase & Install of Tiger..
When I first log in from changing my theme, but after a second (maybe two) my menu extras become unskinned, as seen in the image below.
I have tried reinstalling APE & ShapeShifter.
Anyone who is having this problem is welcome to report it / so are any updates/fixes on the issue.