ecaa0ec1 ​

input = fill #0 (fill #1 black) |> fold (fold rect) #2
output = fill #0 (fill #1 black) |> fold (fold rect) #3
(VInt, HInt, OList UList ((VInt, HInt, VInt, HInt), Color), OList UList ((VInt, HInt, VInt, HInt), Color))
(12v, 10h, [{((6v, 5h, 8v, 6h), blue)}, {((9v, 8h, 9v, 8h), yellow), ((6v, 7h, 8v, 7h), teal), ((6v, 5h, 7v, 5h), teal), ((6v, 3h, 6v, 3h), yellow), ((4v, 5h, 4v, 5h), yellow), ((4v, 3h, 4v, 3h), yellow)}], [{((6v, 6h, 8v, 7h), blue)}, {((7v, 7h, 8v, 7h), teal), ((6v, 5h, 8v, 5h), teal), ((5v, 4h, 5v, 4h), yellow)}])
(10v, 10h, [{((4v, 4h, 6v, 6h), blue)}, {((5v, 6h, 5v, 6h), teal), ((5v, 4h, 6v, 4h), teal), ((4v, 2h, 4v, 2h), yellow), ((3v, 7h, 3v, 7h), yellow), ((2v, 4h, 2v, 4h), yellow), ((2v, 2h, 2v, 2h), yellow)}], [{((4v, 4h, 6v, 6h), blue)}, {((6v, 5h, 6v, 6h), teal), ((4v, 5h, 4v, 5h), teal), ((3v, 3h, 3v, 3h), yellow)}])
(11v, 10h, [{((5v, 4h, 6v, 6h), blue)}, {((4v, 5h, 5v, 6h), teal)}, {((8v, 4h, 8v, 4h), yellow), ((8v, 2h, 8v, 2h), yellow), ((6v, 2h, 6v, 2h), yellow), ((4v, 5h, 4v, 5h), blue), ((4v, 4h, 4v, 4h), teal), ((3v, 3h, 3v, 3h), yellow)}], [{((4v, 5h, 6v, 6h), blue)}, {((4v, 4h, 5v, 5h), teal)}, {((7v, 3h, 7v, 3h), yellow), ((6v, 4h, 6v, 4h), teal), ((5v, 4h, 5v, 4h), blue)}])
(11v, 11h, [{((6v, 5h, 7v, 7h), teal)}, {((9v, 9h, 9v, 9h), yellow), ((9v, 7h, 9v, 7h), yellow), ((7v, 9h, 7v, 9h), yellow), ((7v, 7h, 7v, 7h), blue), ((7v, 5h, 7v, 5h), blue), ((5v, 5h, 5v, 7h), blue), ((4v, 8h, 4v, 8h), yellow)}], [{((5v, 5h, 7v, 6h), teal)}, {((8v, 8h, 8v, 8h), yellow), ((7v, 5h, 7v, 5h), blue), ((5v, 7h, 7v, 7h), blue), ((5v, 5h, 5v, 5h), blue)}])
(11v, 11h, [{((5v, 5h, 7v, 7h), blue)}, {((6v, 6h, 7v, 7h), teal)}, {((8v, 4h, 8v, 4h), yellow), ((7v, 7h, 7v, 7h), blue), ((5v, 9h, 5v, 9h), yellow), ((3v, 9h, 3v, 9h), yellow), ((3v, 7h, 3v, 7h), yellow)}], ?)