40f6cd08 ​

input = fill #0 (fill 30h black) |> fold (fold rect) #1
output = fill #0 (fill 30h black) |> fold (fold rect) #2
(VInt, OList UList ((VInt, HInt, VInt, HInt), Color), OList UList ((VInt, HInt, VInt, HInt), Color))
(27v, [{((3v, 4h, 13v, 19h), green)}, {((5v, 6h, 13v, 17h), yellow)}, {((7v, 8h, 13v, 15h), blue)}, {((16v, 15h, 24v, 29h), green), ((9v, 10h, 13v, 13h), teal)}], [{((16v, 15h, 24v, 29h), green), ((3v, 4h, 13v, 19h), green)}, {((18v, 17h, 24v, 27h), yellow), ((5v, 6h, 13v, 17h), yellow)}, {((20v, 19h, 24v, 25h), blue), ((7v, 8h, 13v, 15h), blue)}, {((22v, 21h, 24v, 23h), teal), ((9v, 10h, 13v, 13h), teal)}])
(30v, [{((3v, 4h, 12v, 14h), red)}, {((6v, 4h, 9v, 11h), fuschia)}, {((20v, 6h, 29v, 21h), red), ((9v, 20h, 17v, 28h), red), ((7v, 4h, 8v, 10h), teal)}], [{((20v, 6h, 29v, 21h), red), ((9v, 20h, 17v, 28h), red), ((3v, 4h, 12v, 14h), red)}, {((23v, 6h, 26v, 18h), fuschia), ((12v, 20h, 14v, 25h), fuschia), ((6v, 4h, 9v, 11h), fuschia)}, {((24v, 6h, 25v, 17h), teal), ((13v, 20h, 13v, 24h), teal), ((7v, 4h, 8v, 10h), teal)}])
(30v, [{((4v, 5h, 12v, 15h), teal)}, {((6v, 7h, 10v, 13h), yellow)}, {((18v, 4h, 28v, 19h), teal), ((6v, 20h, 12v, 29h), teal), ((7v, 8h, 9v, 12h), red)}], [{((18v, 4h, 28v, 19h), teal), ((6v, 20h, 12v, 29h), teal), ((4v, 5h, 12v, 15h), teal)}, {((20v, 6h, 26v, 17h), yellow), ((8v, 22h, 10v, 27h), yellow), ((6v, 7h, 10v, 13h), yellow)}, {((21v, 7h, 25v, 16h), red), ((9v, 23h, 9v, 26h), red), ((7v, 8h, 9v, 12h), red)}])
(30v, [{((15v, 3h, 26v, 16h), blue), ((4v, 19h, 18v, 29h), blue), ((2v, 14h, 11v, 15h), blue), ((2v, 12h, 11v, 13h), red), ((2v, 11h, 11v, 11h), teal), ((2v, 8h, 11v, 10h), yellow), ((2v, 7h, 11v, 7h), teal), ((2v, 5h, 11v, 6h), red), ((2v, 3h, 11v, 4h), blue)}], ?)