While waiting for the updated and improved MailAppetizer release, I’ve been using GrowlMail, part of Growl, Christopher Forsythe et al.’s open notification framework for Mac OS X. Given the conceptual similarity, it was easy to adapt my MailAppetizer priority coloring idea to the Music Video notification design:

GrowlMail Notifications with Priority Level Indication

The three colors would map to the three priority levels that can be assigned to outgoing messages using Mail 2.0′s built-in functionality (there are actually five X-Priority levels), decreasing in visual prominence as the priority level lowers.

On a somewhat related note (look at the image), Path Finder 4 is going to rock my socks.