Uses less memory than IE and a great popup blocker. You can change progressbar color, Statusbar Font....
Change the color scheme and background image of the Mozilla Thunderbird.
FolderIcon XP allows you to change an icon or color of any folder.
QRes is a utility to change screen resolution, color depth and refresh rate.
Experiment with color and watch your places change by using your computer.
South Bay Software
Quickly change your resolution and color depth from the system tray.
Change the eye color, remove "red eyes" on digital photos with two mouse clicks.
Change the colors on a row or column, move them, and make the same color.
Marko Oette (oette.info)
Allows you to quickly change the resolution and color depth.
It's a font viewer and allows you to change the font size, style, and color.