
plscol0:  Set 8-bit RGB values for given cmap0 color index 

DESCRIPTION:

    This function is used in any example 31. 

SYNOPSIS:

plscol0(icol0, r, g, b)

ARGUMENTS:

    icol0 (PLINT, input) :    Color index.  Must be less than the maximum
    number of colors (which is set by default, by plscmap0n, or even
    by plscmap0). 

    r (PLINT, input) :      Unsigned 8-bit integer (0-255) representing the
    degree of red in the color. 

    g (PLINT, input) :      Unsigned 8-bit integer (0-255) representing the
    degree of green in the color. 

    b (PLINT, input) :      Unsigned 8-bit integer (0-255) representing the
    degree of blue in the color. 
