How do you make an unread message not only bold but a color? I've looked at the rules choices and I don't see a usable option. If I set a color preference for the message list font, it will color all messages, which isn't what I want. I'd like only unread messages to be bold and, say, orange so that I can see them across the room without glasses. Entourage can be set to a color; surely Mail can also. What am I missing?