logic for new users - deactivate thulb mode and add default format.

[moehrlich]

I think we are needing a new logic that a new user can see in which case which format is used. For example why is thulb_gross used - i know it matches the regex criteria but nobody can see why.

I think its like a thulb_mode for everyone and whats happening when there is no thulb_mode? Nothing from the thulb should be used and there should be a default format.

[EliDeh]

a default mode is implemented, and will from now on be used in releases as default