137eaa0f ​

input = fill 11v (fill 11h black) |> fold (fold rect) #0
output = [[#1, #2, #3], [#4, grey, #5], [#6, #7, #8]]
(OList UList ((VInt, HInt, VInt, HInt), Color), Color, Color, Color, Color, Color, Color, Color, Color)
([{((9v, 6h, 9v, 6h), grey), ((8v, 7h, 9v, 7h), orange), ((4v, 3h, 4v, 4h), yellow), ((3v, 8h, 3v, 8h), grey), ((3v, 4h, 3v, 4h), grey), ((2v, 7h, 2v, 8h), fuschia)}], fuschia, fuschia, orange, black, orange, yellow, yellow, black)
([{((4v, 5h, 4v, 7h), orange)}, {((10v, 3h, 10v, 3h), grey), ((9v, 7h, 9v, 9h), green), ((9v, 3h, 9v, 4h), red), ((8v, 8h, 8v, 8h), grey), ((4v, 6h, 4v, 6h), grey), ((4v, 3h, 4v, 3h), grey), ((3v, 2h, 3v, 2h), fuschia)}], fuschia, red, red, orange, orange, green, green, green)
([{((4v, 1h, 4v, 1h), blue), ((10v, 7h, 10v, 8h), brown), ((9v, 8h, 9v, 8h), grey), ((5v, 7h, 6v, 7h), red), ((5v, 6h, 5v, 6h), grey), ((4v, 2h, 4v, 2h), grey), ((3v, 2h, 3v, 3h), blue)}], black, blue, blue, blue, red, brown, brown, red)
([{((11v, 4h, 11v, 5h), red), ((4v, 1h, 4v, 1h), yellow), ((10v, 4h, 10v, 4h), grey), ((8v, 7h, 8v, 7h), grey), ((7v, 8h, 7v, 8h), teal), ((5v, 3h, 5v, 3h), yellow), ((5v, 2h, 5v, 2h), grey), ((3v, 9h, 3v, 9h), grey), ((3v, 8h, 4v, 8h), brown), ((2v, 9h, 2v, 9h), brown)}], ?, ?, ?, ?, ?, ?, ?, ?)