My idea for italicized is like the way AIM does it.. It means away, or in the case of mIRC, idling in the room. Then I could use [K15][Italic] on the name..
The [Reverse] could be used for those that are on ignore lists, etc, so they stand out more.
The background I was thinking so that you could increase the number of groups overall.
Which is the whole idea behind it to begin with.
I had originally forgotten to include [U]nderlining, but then I thought about it.. I don't think it'd look right with underlining (but for those that want it, Underlining too)