27a28665 ​

input = [[#0, #2, #3], [#4, #1, #2], [#3, #4, #5]]
output = fill 1v (fill 1h #6)
(Color, Color, Color, Color, Color, Color, Color)
(grey, black, grey, black, grey, black, blue)
(teal, teal, black, teal, black, teal, red)
(grey, grey, black, grey, black, grey, red)
(black, blue, blue, blue, black, black, green)
(black, teal, teal, teal, black, black, green)
(yellow, black, yellow, black, yellow, black, blue)
(black, grey, grey, black, grey, black, fuschia)
(black, teal, teal, black, teal, black, ?)
(orange, black, orange, black, orange, black, ?)
(red, red, black, red, black, red, ?)