Albinism!
For Cows, Pigs, Chickens, Turtles, Parrots and Armadillos (Animals that didn't already have natural white varients) there is a very rare chance for an albino to spawn!
The most common would be the pig since it's hard to tell the difference between white pigs and albino pigs, and the hardest just because of the natural variation would be the albino parrot.
Sheep: Changed model, changed colorization to make more sense with IRL sheep
Cow: Changed model, changed baby model, changed texture of original type (more saturated, whiter spots) added more variations (pure red, black and white, light brown, black) Mooshroom: Changed model, changed baby model, changed texture Pig: Changed model, added more variations (yellower, brown, spotted versions of all of the above, black) Chicken: The MOST changed model, changed model and texture for chicks, added more variations (ivory, silver, scarlet, ciara, irona) Squid: Changed model to actually look like a squid, added more variations (speckled blue, purple, white, red, orange) Glow Squid: Changed model and texture Wolf: Changed model slightly Cat: Changed model slightly, changed kitten model slightly, added more variations Ocelot: Changed texture Fox: Changed model, changed texture, changed texture for baby red foxes, added rare black fox Llama: Changed model slightly Goat: Changed model slightly, changed baby goat model, added more variations (brown spots, dark brown spots, gray spots, black)
Horse baby, Donkey baby, Camel baby model changed slightly
More Armadillo Variations (lightest brown, brown, dark brown)
More Camel Variations (white, tan, brown)
More Parrot Variations (Green Cheek Turquoise, Green Cheek Green, Galah, Eclectus, Dracula, Sun Conure)
More Turtle Variations (Lighter Green, Darker Green, Brown-Shelled Green, Hawksbill, Loggerhead, Kemp's Ridley, Olive Ridley, Leatherback)
More Frog Variations Cold Frog (Yellower Green, Browner Green, Spotted versions of above) Temperate Frog (Yellow-legged Orange, Yellower, Orange with Blue Legs, Spotted versions of above) Warm Frog (Green-hued, Orange-hued, Gray-colorization)
Ender Dragon: Changed Model, Texture