Floodfill (limited start area): 37, 26, 58, 37 -> 003b5b89|59, 99, 100, 108 -> 00c731df|16, 689, 1273, 700 -> 05e267ad|58, 712, 79, 722 -> 00241e55|0, 712, 1364, 768 -> 2b4d9eb9