Yes, changing colors can be without too much trouble. The best way to figure this out is to create a Rich Text document using WordPad. Put multiple colors and fonts in the document and (of course) make sure you save it as an RTF file. Next use VFP's editor to open the file. This will show you all the special formatting characters inserted before and after color and font changes. It's really similar to HTML in that regard.

Are you writing an editor that runs in your VFP app?

-Matt