Would you consider implementing Heading formats H1, H2 so on and and font sizes
as seen on the 'full demo' of the HTML box
http://remiya.com/cms/products/htmlbox/demo/demo_full.html

imo- COLOR, HIGHTLIGHT, STYLES are a bit bloat, spoils the code and the overall site style
but having 'headlines' and 'font sizes' would be positive. options of on the htmlbox.module settings.

thanks