A kind anonymous contributor has sent in this labor of love – a 3d rendered gallery of pubic variations. If you look carefully you can see the pubes are no mere texture applied over a wireframe model; there’s three dimensions to the actual muffin.
What the cross referenced letters refer to, I do not know. Perhaps so you can print it out, take it down to your waxing salon and say “Give me the 4G!”
Many thanks to the original poster!