User blog comment:Sannse/Your First Look at the New Wikia/@comment-88790-20100830025130/@comment-824313-20100830045926

Skins are hard to customize like that, and Oasis is way different from Monaco. You would really have to know the CSS, JavaScript, and a whole bunch of other junk before you could reverse-engineer it.

Wikipedia only allows you like six. You can't really change the skin (without permission or power) of a wiki unless you actually run it. That doesn't mean admin, it means staff.