Board Thread:Support Requests - Designing Your Wikia/@comment-4224349-20141101014643/@comment-4962933-20141116121403

You can, theoretically.

The theme designer keeps track of the most recent 10 changes saved in the preview mode. So it is possible to set up a theme, save it, and then set up another, save that one, etc.

But if you're looking for a way to export themes outside of Wikia, I do not know how.