sorry its a long while ago when i was working on my forum and i lost a lot of data when my pc was crashed.
Dont use the "b" word....
How can i add an additional "default" Style?
I will edit the default /styles/prosilver/theme/colours.css on an additional design for a partner forum.
So I will add the default Style -> edit the css and upload it on my own forum and when i am finish my "partner" could replace it in his forum.