unsure if it's me or if it's simply not possible in this mod, but i can't figure out how to get elytra to randomise. my .json file works perfectly when i'm trying to randomise zombies, but once i switch it to elytra files it doesn't compute. i'm using the following:

{
"type": "varied-mobs:pick",
"choices": [
"minecraft:textures/entity/elytra1.png",
"minecraft:textures/entity/elytra2.png",
"minecraft:textures/entity/elytra3.png",
]
}

i know they're not mobs, but they're entities, so i can't use, like, vanilla randomisation on them or anything. they worked with the mob randomisation on optifine