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

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).

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

       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.

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

       PLplot documentation at http://plplot.org/documentation.php.

                                                   July, 2025                                 PLSCOLBGA(3plplot)

plscolbga(r, g, b, alpha)