How do you make a trayicon (Gnome/KDE) that has text in it, using python?

[AsGF2MX]

As the title says, but failing that, what about something that has an image in which there are several white spots (blank pixels) that I want to dynamically change the color for?

[dwblas]

I know that adesklets is written Python and gdesklets may be. A link to a simple Google search follows. There has to be lots of info on the web.
http://www.google.com/search?q=python+tray+linux&ie=utf-8&oe=utf-8&rls=com.ubuntu:en-US:official&client=firefox-a