Floodfill (limited start area): 28, 240, 160, 320 -> 06f53d86|0, 300, 80, 326 -> 019d3f18|44, 461, 108, 504 -> 0618b932|52, 496, 60, 500 -> 000028bb|29, 548, 60, 583 -> 01587355|56, 580, 64, 592 -> 0003df06