Color database (X11.3) on Sun vs HP

[Jim Fulton]

| I have a single rgb.txt that I use on a Sun3 and an HP 9000/350, both on
| X11.3, yet my application displays different colors for certain values.

The phosphers in monitors from different manufacturors (and frequently
from the same vendor) will yield different visual results for the same RGB
input values.  Thus, a color database tuned for one type of monitor will
often look horrible (typically very dark or hideously bright) on a
different type.  

The original sample X rgb.txt file was derived from a database developed
for the DEC VT220 (that was all that was available).  The version on R4
from MIT has been tweaked to look better on Sun's, Pmax's, and HP's.

Ideally one would use something like Tek HVC and make all of these
problems go away.