Hello,
> I see all color combinations except red/red (It shows up as
> white/black) and brightred/red (shows up as brightwhite/black). I
> played a bit around and looked at the bug database, but didn't find a
> solution. Do you have an idea, why those colors aren't displayed
> correct?
have a look at the source code. I think it is in color.c, if not it's
easy to find. However mutt has some sanity checks in to avoid stupid
color combinations.
Thomas