
In Tiger, Mail.app v2 now has support for priority flags (low, normal, and high) for mail messages, but the choice of icons is a little unusual, as seen at right.
I wanted to alter the UI elements, since ! for normal mail just didn't make sense, and I'm used to seeing ! denote high-priority mail. The UI elements are all just .tiff files in the Resources folder of Mail.app's package (Control-click on the Mail app and choose Show Package Contents), so making the change isn't that hard. Here are two examples showing my results: Compose Inbox.
If you want to repeat the experiment, the files I created can be downloaded [56KB] from my Mac.com page...

