In order to spare myself some time, I figured out how to generate a full color bar image with ImageMagick. It's amazingly efficient and simple:
Code: Select all
convert -size 92x154 xc:#cccccc xc:#ffff00 xc:#00ffff xc:#00ff00 xc:#ff00ff xc:#ff0000 xc:#0000ff +append color_bars.png