User blog comment:Cristina7/Introducing Discussions, a New Platform For Engaging Your Community/@comment-5275700-20160915160434/@comment-13301-20160928092759

Don't expect the ability to make CSS changes on discussions. That's not part of the wiki, and wikia is currently restricting this with their Terms of Use on normal wiki pages (for the oasis skin), so most you can expect is having a theme designer.