Board Thread:Consensus Track/@comment-2200849-20150619130604/@comment-2200849-20150621105409

AFAIK Wikia doesn't offer a way to do that, but I'm working on a form which should allow users to create their infobox theme by filling out a form, and then specify the theme name in the template invocation (which is supported by Wikia). Thank goodness for Heroku.