In Outlook I'm a fan of the "Pick a new color when replying or forwarding" option, as each reply getting its own color helps me with tracking/rereading complex conversations.
The one thing I don't like is the pool of colors it uses -- some aren't very readable, and others don't carry a professional look. Is there a way (via editing registry keys or otherwise) to customize the pool of colors Outlook uses for this?
The feature in question is pointed out below: