Gnu Skin is a plugin for the wiki that makes all of the pages have a uniform "skinned" look.
You can see it in action here: http://hurd.gnufans.org/bin/view/Hurd/
In order to make our wiki look a lot sexier, and a lot easier for regular people to use (as opposed to us geek-types), I'm going to probably put the GnuSkin on the wiki... updates soon.