Choosing Screen Colors

If you are using a monochrome monitor, there are only two choices: black-on-white or white-on-black. You can switch between these two modes using Alt-C as a toggle command.

With a color monitor, Alt-C exchanges the colors 0 and 3, and the colors 1 and 2 of the palette. If you are not happy with these colors, you can exit the editor and alter the palette before starting again.

This exercise is an example of the many `toggle commands' given from the keyboard which allow you to set various options concerning the state of the editor.