This variable is typically used when a character-based application is moved to a graphical environment. Use the COLOR_TABLE variable to cause transformations of individual color combinations. For example, a COLOR_TABLE entry might cause a red foreground on a black background to be translated to a white foreground on a blue background.
Follow the word COLOR_TABLE with the original foreground and background numbers, separated by a comma. Follow these by an equals sign and then the new foreground and background numbers, separated by a comma.
For example, to transform the color combination of foreground 5 on background 2, to foreground 13 on background 2, you would use:
COLOR_TABLE 5, 2 = 13, 2
These are the possible values for foreground and background settings: