XF 1.1 How would I set usergroup style permission ?

[thebush]

I want another theme (or just a single theme, cannot switch to another) just for the guest and another theme for registered.

 

[Jake Bunce]

There is no configurable option for that, but here is a small addon I made that is close to what you want:

http://xenforo.com/community/threads/automatic-style-switch.24760/#post-301828

The $visitor object is already setup in that code. You can use it to check the user_id of the user which will tell you if they are a guest or not. Obviously this involves custom coding.