HISTOGRAM /FILL

        [GREG1\]HISTOGRAM [Array_X Array_Y] /FILL [Colour] [/BASE Ybase]

    The  /FILL  option  indicates to fill the histogram with the current pen
    colour or with the specified colour (see HELP PEN  /COL  for  possibili-
    ties).  Blanking is handled as for other histograms. Usually needs to be
    done in conjunction with the /BASE option  to  properly  fill  the  his-
    togram.  Icol is the number (0-23) of the color used to fill. The colors
    of  the  last  16  pens  (8-23)  can  be  changed  by  the   user   (See
    HELP LUT /PEN).