I have made a further mod to Alef's board. I found that the points weren't contrasting enough for me, so I darkened the dark ones. If anyone wants, I can zip up the whole shebang again. For some reason, just using the background.png won't work correctly. Somehow the board got shifted by 3 pixels in both x and y directions, so the normal.metrics and reverse.metrics files had to be adjusted accordingly. It might have something to do with having to export the new file out of Gimp, but I'm not sure. I am a new Gimp user and haven't figured out how to use all the features yet.