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NAME
       plscolbga  -  Set  the  background  color  by 8-bit RGB value and PLFLT alpha transparency
       value.


SYNOPSIS
       plscolbga(r, g, b, alpha)


DESCRIPTION
       Set the background  color  (color  0  in  cmap0)  by  8-bit  RGB  value  and  PLFLT  alpha
       transparency value (see the PLplot documentation).

       This function is used in example 31.


ARGUMENTS
       r (PLINT(3plplot), input)
              Unsigned 8-bit integer (0-255) representing the degree of red in the color.

       g (PLINT(3plplot), input)
              Unsigned 8-bit integer (0-255) representing the degree of green in the color.

       b (PLINT(3plplot), input)
              Unsigned 8-bit integer (0-255) representing the degree of blue in the color.

       alpha (PLFLT(3plplot), input)
              Value of the alpha transparency in the range (0.0-1.0).


AUTHORS
       Many  developers  (who  are  credited  at  http://plplot.sourceforge.net/credits.php) have
       contributed to PLplot over its long history.


SEE ALSO
       PLplot documentation at http://plplot.sourceforge.net/documentation.php.

                                          November, 2017                       PLSCOLBGA(3plplot)