Ann,
I have no problem with the word "faithful".
I took one of the pages I was reading, and added "faithful:30:#bbff00"
and I got something like this:
http://i.imgur.com/CVqHO.jpg
so it works. Keep in mind the format is #rrggbb. #bbff00 is a
greenish color.
If a word does not have a color modifier, its color will be chosen
based on the theme. Change the "color variation" to 0% if you want
only the exact colors but not interpolated colors (usually not a very
noticeable problem).
-- Hardy