Appearance
6150a2bd ​
arc
let g: OList OList Color
let input = g
let output = rev (map rev g)composer
input = [[#0, #1, #2], [#3, #4, black], [#5, black, black]]
output = [[black, black, #5], [black, #4, #3], [#2, #0 | #1, #0 | #1]]
(Color, Color, Color, Color, Color, Color)
(green, green, teal, green, orange, grey)
(grey, grey, red, blue, black, black)
(fuschia, green, grey, fuschia, teal, yellow)