I'm probably gonna have nineteen more pages of this, but here's part 1!
Top row is a non-genome marking I've provisionally named 'Edged'. It's based on the black 'edging' seen on the white markings of bannerfish and the like:
Edged: (+Edged)
Adds a black or dark brown outline around all white markings, similar to the black outlining seen on wild dog overo. This marking can affect any type of paint marking (tobiabo, overo, appaloosa, etc), as well as non-gene white markings. (Blazes, socks, etc.)
Bottom left is Fire Pinnate, related to the currently existing Pinnate!
Fire Pinnate: (FbyFby/Fbyfby)
A marking based on the firefish goby. Adds black edging around a trotter's croup, rear legs, and belly, as well as causing a black ombre effect on the tail. Homozygous carriers of this gene can occasionally display a pale lavender 'cap' forming an inverted T above and between their eyes before stretching back over their neck.
Bottom right is Angel Stripe!
Angel Stripe (AngAng/Angang):
A black marking based on the flame angelfish. Adds vertical black or dark brown streaks of variable width and length along a trotter's midsection, as well as dark 'eyeshadow'. These bands should always be thickest towards the center and narrow at the ends, with the first band typically the broadest. Anywhere from 4-8 bands is acceptable. Can also add dark spots above and below the bands.