This is a test to show the color resolution of a 16 bit display system
such as ones using the Sierra DAC. There are three graphics files in this
ZIP: TSTCLR.TGA -- a 24 bit TARGA file.
     TSTND.GIF	-- The TARGA file mapped to 5 bit per primary, no dithering
     TSTD.GIF	-- The TARGA file mapped to 5 bit per primary, with dithering

The TARGA image contains 6 color bars, each one "color" with the intensity
getting higher towards the right. There are 256 different intensities for
each color bar.

TSTND.GIF shows what the TARGA file will look like on a 16 bit per pixel
display. Note the distinct "bars" in the image caused by the color reduction
to only 32 intensities per primary.

TSTD.GIF is a dithered version, note how much smoother it is, the "bars"
are almost invisible.

If you have a real 24 bit display system you can compare the TARGA file
to the dithered version, they should be very similar.