Trichrome is a simple interactive diversion that I made back in 1996, when using HTML frames was still really cool (I thought). While neither a game nor a tool, Trichrome could be useful to a few, entertaining to others, and numbingly dull to the rest. This is an excercise in basic HTML. It requires only a frames-capable browser and a delight in color. There are at least 17,550 possible variations. Instructions should not be necessary.
Special Note, 02/10/05—Color frames are adjustable! Click and drag the frame border between colors in order to change the amount (relative surface area) of color. Thanks to Douglas Campbell for indicating to me that this is a cool feature that is not at all obvious.