"Hi-color" is 16-bit color (about 32,000 colors, 64,000 with some cards), you should really use "True-Color", 16.8 Million colors, also known as 24 or 32 bit color, which is genreally taken to be about as many as the eye can see. If you use Hi-Color there are about 16 and a half million colors you can't see on your computer. Incidently, 24 and 32-bit color actually have the same numbers of shades, 32 -bit just writes to the screen faster. Back in the olden days, when covered wagons roamed the West, we had 8-bit color, still seen in GIF files, going back even further we had 16-color (4-bit) EGA, or 4-color CGA, or even monochrome, Gee!