Rolebased Theme plugin - does not allow setting of themes
I've got a userbase that's heavily divided between dark and light themes, and when we were on phpBB they were able to chose. I understand why Vanilla isn't able to implement this as an overall thing, but for users who it's a breaking point, I'd like to be able to use the Rolebased Theme plugin to assign them a theme of their choice. Problem: it doesn't seem to be working. I'm on 2.1b3 and whenever I adjust the theme a user role is supposed to have from the plugin's themes page, it just reverts to the default.
Any idea what I'm doing wrong?