"I think it would be useful to make the default list of font colors editable. Perhaps when selecting a custom color just have a "Add to font color list" check box or something, and some way to remove colors from the list as well. It would make it easier to find/use custom colors you have already used and it could be used to enforce a certain color set for users editing a page. "

"Thanks for this suggestion. Unfortunately, I think every time you cleared your cookies the custom colours would go away. You can still have any colour you want only it takes a bit longer to get it."