Thanks all
I tried to set colors by myself looking at the home php code; I saw it used the bgcol variable in a config file, but even after working with tha variable in those files (they are many) - setting bgcol to 000000 - nothing happened. To be honest, in one case - I cant remember when - the Gallery hanged on 'Input...' and could no load.
What was wrong with that?
Just to know...
Thanks again
Jamal