So I found this astrological chart that was black and white and decided to color it according to the Homestuck Hemospectrum. All the cannon troll signs are the correct color. Except for Vantas ,but he is a mutant blood so he doesn’t count. I took some liberties with the other signs by mixing the colors depending on where they are placed in-between the cannon ones. Edit: (Also Caliborn is not a troll and does not effect this chart even though his symbol is on it)
I am not to fond of black and white bloods, but I still felt like they needed a place.
If applied to a fan adventure it would most likely be used for a troll planet based on medieval times or possibly in the future where culling is not as common, thus allowing more impurities and mutants to hatch. ¿Hmmmmmm?