User blog comment:Kirkburn/Rich text editor upgrade news/@comment-1025281-20091225134635

Liklik2012: All existing fonts and colours that are defined by your browser can be used. At the moment, you can only change the font and colour from the individual site default by using wikitext, because this isn't a frequently used function for articles.

Sezme: Basically, use the editor as you would a word processing program like Microsoft Word. Maybe Help:Rich text editor can help you - not sure if it's been updated fully though.