I think we contributed a theme to the Raven Nuke distribution in version 2.2, but don't quote me on it.  I just know I have been meaning to release an updated version that works properly with Firefox 3.  I finally got around to it and it has been posted in the downloads for 0 points.  (Clan Themes Raven Nuke 2.30.1 Theme)

This image contains both old and new.  Old is on the left and new is on the right.  It is very hard to see the difference, but pay close attention to the block titles if you have never used this theme.

 Very sorry for the delay and I will try to get it over to the RN Team asap for inclusion in the next release.