Sorry if this thread is in wrong section.
A simple way using css technique, you can do this by using fid_id, and set a background for every id.
For every forum you will have to assign background color or image.
Regards
WallBB
Like that?
.fid_2 {
background: #0f0f0f url(images/cat.png) repeat-x;
}
Edit: it's not working. I tried it with .fid_2 also with #fid_2