The following is a very elaborate example of how to use color in a particular MASTER routine (PLOTSC).
C DIMENSION AND LOAD COLOR ARRAY
DIMENSION ICOL(6)
DATA ICOL/1,2,3,4,5,6/
...
C CALL PLOTSC WITH NUMBER OF TITLE CHARACTERS NEGATIVE TO
C USE COLOR ARRAY. SET iflag TO INITIALIZE/CLOSE LONGLIB
C SET iflag TO PRODUCE AXIS TICKED GRID
CALL PLOTSC(X,Y,25,4,8.,6.,'X AXIS',6,
1 'Y AXIS',6,'TITLE',-5,ICOL)
...