f9012d9b ​

input = #0
output = fill #1 (fill #2 #3) |> fold (fold rect) #4
(OList OList Color, VInt, HInt, Color, OList UList ((VInt, HInt, VInt, HInt), Color))
([[red, blue, red, blue, red], [blue, blue, blue, blue, blue], [red, blue, red, blue, red], [black, black, blue, blue, blue], [black, black, red, blue, red]], 2v, 2h, blue, [{((2v, 1h, 2v, 1h), red)}])
([[teal, fuschia, black, fuschia], [fuschia, teal, fuschia, teal], [teal, fuschia, teal, fuschia], [fuschia, teal, fuschia, teal]], 1v, 1h, teal, [])
([[red, red, grey, red, red, grey, red], [red, red, grey, red, red, grey, red], [grey, grey, grey, grey, grey, grey, grey], [red, red, grey, red, red, grey, red], [red, red, grey, red, red, grey, red], [grey, grey, grey, grey, grey, black, black], [red, red, grey, red, red, black, black]], 2v, 2h, grey, [{((2v, 2h, 2v, 2h), red)}])
([[teal, blue, teal, teal, black, black, black], [blue, teal, teal, blue, black, black, black], [teal, teal, blue, teal, black, black, black], [teal, blue, teal, teal, blue, teal, teal], [blue, teal, teal, blue, teal, teal, blue], [teal, teal, blue, teal, teal, blue, teal], [teal, blue, teal, teal, blue, teal, teal]], ?, ?, ?, ?)