Create LBB Back-Covers!
The color values goes from 0 to 255. 0 is the darkest. 255 is the brightest. Use Bright colors, when You select Your own RGB colors. That is, use values that add up to a sum of more than 300.
To Save the LBB Back-Cover, rightclick and select "Save Image As" and select to save the LBB Back-Cover as a gif-file. (This is basically how to do it, but it may differ with different browsers.)