Changing the plot background

From WekaWiki

The default background color for plots, e.g., for ROC curves, is black, which might not be convenient for screenshots.

Since the color is stored as a value in a Properties File, you can easily change the color:

  • extract the following file from the weka.jar 
weka/gui/visualize/Visualize.props
  • place a copy of that file in your HOME directory (on *nix $HOME, on Windows %USERPROFILE%)
  • edit the Properties File with any text editor
  • replace the value of following key with a color of your liking, e.g., white 
weka.gui.visualize.Plot2D.backgroundColour
  • save the file and restart Weka
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