As far as I know, there are now 2 and 1/2 official Windows XP styles out there. Official as in “from Microsoft”. First, there is Royal. Long time favorite. I learned there is a non-complete (that’s way 1/2) Royale Noir.
But now there is also Zune Theme for Windows XP . Like it, use it. These days, it has to be black to be cool, right?