the colors on the cp represent the layers in proximity to the axis.....as for the references..id say use reference finder..but im not sure.....good luck!
This is the flying crane model that I most like the look of, however looking at the crease pattern it appears to have a ratio of 4:12+7√2 for the ratio between the 4 unit wide strip and the fish base section. Is this right? If so, does anyone know how to find this reference? Of course, I could just use ReferenceFinder, but using the exact reference is more satisfying.
Your best bet would be finding the center of the fish base, I think. Draw a line (manually or digitally) from one side corner through that point, and find where it hits the opposite edge. Just from eyeballing it, it looks close to a fish base proportion itself.