Milestone 9

This is Milestone 9 (Hard) with 3 full space-belts as output using trains for the input. You'll need six trains with 6 wagon inputs each. Starting with the NW train station and going clockwise and assuming RGB color mode, the inputs at the train stations will be white paint, magenta paint, shape with squares in the NW and SE quadrants (Ru--Ru--), shape with squares in the NE and SW quadrants (Ru--Ru--), red paint, white paint.