Board Thread:Support Requests - Designing Your Wikia/@comment-27645274-20160427190238/@comment-1251315-20160428171557

Nothing is different. However, if you wiki was created after June 2014, then you only need to add CSS edits to common.css and they'll load in all skins: wiki's created before June 2014 would need to have separate CSS files to affect separate skins, though they can request it to be combined into one.