Color_resources

NB: THIS SECTION IS LARGELY IRRELEVANT IN GNUPLOT VERSION 5 The X11 terminal honors the following resources (shown here with their default values) or the greyscale resources. The values may be color names as listed in the X11 rgb.txt file on your system, hexadecimal RGB color specifications (see X11 documentation), or a color name followed by a comma and an intensity value from 0 to 1. For example, blue, 0.5 means a half intensity blue.

  gnuplot*background: white
  gnuplot*textColor: black
  gnuplot*borderColor: black
  gnuplot*axisColor: black
  gnuplot*line1Color: red
  gnuplot*line2Color: green
  gnuplot*line3Color: blue
  gnuplot*line4Color: magenta
  gnuplot*line5Color: cyan
  gnuplot*line6Color: sienna
  gnuplot*line7Color: orange
  gnuplot*line8Color: coral

The command-line syntax for these is simple only for background, which maps directly to the usual X11 toolkit option "-bg". All others can only be set on the command line by use of the generic "-xrm" resource override option

Examples:

     gnuplot -background coral
to change the background color.

     gnuplot -xrm 'gnuplot*line1Color:blue'
to override the first linetype color.