Change icon tray when someone is online

[odd]

Would be cool if you could have a option that will enable ioftpd to change the color of its tray icon when somone logged in to the server.
Like if there is nobody online the icon would be red and when somones is logged in the icon will change to another color.
And the option could be for ppl that doesnt care of this change color thing and want it to be like it was before.

What do ya think?