Direct Call To Specified Theme?

Is it possible to call a theme apart the default one via a special URL?
I want to include the forum into a facebook-tab/call it within an android app, but to prevent scrollbars a responsive alternative theme should be used. Any way to do that?
Thanks Brogan.
Thats the solution i came up with.
But is there a solution which does not ask for a theme change but just shows the forum home with the alternative theme?


XenForo moderator
Staff member
For logged in users it will always ask for confirmation as it as changing their account preferences.