Minor changes to the item format: where commas were previously used (e.g. effects, enchantments), they have been replaced by colons. It's necessary to modify them manually or the plugin won't load! More information here.
You can now set the skin of the npc using the texture value and signature (You can use https://mineskin.org/ to generate them)
Code (YAML):
npc-skin: # You can use a player name or a texture URL. texture: "https://s.namemc.com/i/d4ea5250d1997cb9.png" # Leave blank to use the texture from above. # You can use https://mineskin.org/ to generate the skin value and signature. value: "" signature: ""