COLOR     Controls automatic color plotting in the Processor (one INTEGER
           value, default is COLOR = 0 (black and white)).  If non-zero, COLOR
           is the size of the color table used for auto-generation of a color
           spectrum across contour plots.  The lowest contour line will be
           blue, then transitioning cyan, green, yellow, until red is used for
           the highest contour.  For a 256 color workstation, COLOR=200 works
           well, which takes into account the 10-20 colors used by the
           workstation for displays and tools.

           To build an N value color table, divide N values along the path:
           black-blue-cyan-green-yellow-red-magenta-white.
     
                                                        N  Use         RGB
               green 010 ______________  110 yellow   ---  ----------  ----
                        /.            /|                0  background  000        
                       / .           / |                1  foreground  111        
                      /  .   white  /  |             2-12  reserved for user      
                     /   .     111 /   |            13-23  used by Processor
                    /_____________/    |               24  black       000        
           cyan 011 |    .        |    |               50  blue        001        
                    |    .000 . . | . .| 100 red       75  cyan        011        
                    |   . black   |    /              100  green       010        
                    |  .          |   /               125  yellow      110        
                    | .           |  /                150  red         100        
                    |.            | /                 175  magenta     101        
           blue 001 |_____________|/101 magenta	      200  white       111