Board Thread:Support Requests - Getting Started/@comment-31707701-20170410005216/@comment-5188557-20170410005428

If you want to do that, add Special:ThemeDesigner to the end of the url of your Wikia and then feel free to edit whatever you want there. If you're looking for more advanced code such as css and .js for customizing your Wikia, then try to explain what you're looking for specifically.