Have you ever thought about how cold your computer screen looks in artificial light? ScreenWhite is designed to give you a truer, warmer representation of white on your display.
The application allows you to tweak your monitor settings to find your preferred white balance. This is done very simply using the two sliders that appear in the simple ScreenWhite interface. You simply drag the sliders up and down to control the green/red balance and left and right to tweak the blue/orange warmth balance. It's suggested that you hold a white piece of paper to the screen in order to accurately set up the right white.
If you want to get a little more technical you can, because ScreenWhite boasts a number of extra settings such as the ability to enter color values manually, along with a feature for storing and managing your own schemes.
There isn't much of a help system in the program, but then it's fairly straightforward to use ScreenWhite anyway.
If you're looking for a way to get your white balance right then ScreenWhite is just the program for the job.