Admin Forum:Restyling the new WikiHeader navigation

Has anyone substantially restyled the new "side-scrolling" WikiHeader navigation bar? I've been messin' around with a few things, but I'm having some difficulty figuring out how to affect the main stripe underneath (the  bit which runs along underneath the main tabs on top). I really don't want it to be the same color as the default button color.

If anyone knows of any wikis where the new navigation system has been restyled away from its default condition, could you please leave a link here? Thanks :) 14:25: Sun 13 May 2012