setpc
SETPENCOLOR colornumber.or.rgblist
SETPC colornumber.or.rgblist
sets the pen color to the given number, which must be a nonnegative
integer. There are initial assignments for the first 16 colors:
0 black 1 blue 2 green 3 cyan
4 red 5 magenta 6 yellow 7 white
8 brown 9 tan 10 forest 11 aqua
12 salmon 13 purple 14 orange 15 grey
but other colors can be assigned to numbers by the PALETTE command.
Alternatively, sets the pen color to the given RGB values (a list of
three nonnegative numbers less than 100 specifying the percent
saturation of red, green, and blue in the desired color).