@ Dr. Joachim Trinkwitz I see now the possibilities behind KOMA-Script and memoir. I'll read the documentation (almost 1000 pages I think) and choose between these two solutions (the one which is simpler and more customizable).
For now I found a neat solution, in case anyone asked: (just using titlesec package, which works great with fontspec) \titleformat{\section}{\fontspec[Color=FF0000]{Anivers Regular}}{\thesection}{1em}{} Regards, Marcin -------------------------------------------------- Subscriptions, Archive, and List information, etc.: http://tug.org/mailman/listinfo/xetex