I tried <. In each of the three light mixes and the pattern looks good. (>.
Is too much light  and all square turn white)

I can even explain it pretty well. For the full collors, turning on two
lights at a time, adds light so +s works.  However, to get the lighter hues
you have added extra light to both colors so adding can be too much and it
seems that the lesser of the pair stays in the acceptable range. Thus all
those numbers up to 510 are legitimate colors for a viewmat palette.  Does
that seem reasonable as an explanation to you?

Linda

-----Original Message-----
From: programming-boun...@forums.jsoftware.com
[mailto:programming-boun...@forums.jsoftware.com] On Behalf Of bill lam
Sent: Wednesday, July 1, 2015 9:17 PM
To: Programming forum
Subject: Re: [Jprogramming] Trouble making patter for a color cube

Perhaps you could also experiment other formulae for color addition instead
of using +,  try >.  eg
 BASE=:25 3$,LYELLOW>."1/LCYAN
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