Setting font color in tables and in the preface title

Hello,

The DocBook XSL book (the chapter on formatting tables) explains how to 
apply different colors to the cell's or row's backround. But it doesn't 
explain how to change to color of the font in the print output. Is it 
done thru another processing instruction or maybe other way?

I can't also figure out how to deal with the preface title. I need to 
change the font color in the print output since I want to have the 
preface, chapter and appendix titles styled in the same manner. Chapters 
and appendices were pretty easy but I'm stuck with the preface. Is it 
possible at all?

I appreciate your help.

-Zbyszek