spectrum steps 5
by Lazur URH
"Spectrum" "stepped" into 1-36-37 steps. In reality only one gradient fill is used for all, so theoretically only the center horizontal axis of each rectangle is filled with the accurate colour -if ever. As, you cannot break down 256 to like 36 even steps. So there should be some rounding at rendering, still good for the original purpose I guess. This variant doesn't produce rendering gaps with anti-aliasing.