Board Thread:Support Requests - Designing Your Wiki/@comment-2112154-20121215072820/@comment-4674838-20121215074433

Back in 2010 when Wikia switched to the Oasis skin, they allowed a few special wikis like Uncyclopedia to have custom skins. (In the case of Uncyclopedia, it's because they parody Wikipedia and so their wiki needed to have a Wikipedia-like skin.) That was a special, one-time provision that only applied to those few select wikis in the past. All wikis since then are required to use the Oasis skin.