During the initial development of the Nether, the Zombie Pigmen originally had red blood instead of the green most are familiar with. This was changed due to it being considered too gory. However thanks to the original creator of the skin, PokeAddicted, we have the original "bloody" textures for the Pigmen.
Seeing as the green blood has (obviously) retained to the current day, I thought it'd be fun to restore the old take. The colors are taken from the original skin and a pinch modified (the Nether Zombies have slightly modified colors that are just BARELY off from the original, which I replicated). Certain colors had to be created from scratch to match the palette count of the original, which I did to the best of my ability (mainly through creating a gradient and eyeballing it via color picker :P).
Both of the Nether Zombies are supported, and Spawn Eggs have their textures changed as well. THIS HAS NOT BEEN TESTED WITH PRE-26.1 VERSIONS. From the looks of things it should work completely fine and even apply to the old baby models, but your mileage may vary.
