Datapack for a mod

I was trying to implement some of my custom content into Brewin' and Chewin' mod keg recipes. But I stumbled upon a problem, that my custom item didn't display similar to the item on the left. I searched inside mod's files, and found a .json file inside assets folder. And wrote this based on it: { "minecraft:water": { "id": "minecraft:potion", "tag": { "Potion": "minecraft:water" } }, "kubejs:torchflower_wine": "kubejs:torchflower_wine", "create:potion": { "id": "minecraft:potion", "tag": { "Potion": { "brewinandchewin:fluid_tag": "Potion" } }, "optional": true }, "create:tea": { "id": "create:builders_tea", "optional": true } } Put it in datapack. It should theoretically work, but it doesn't, sadly. And I feel kinda stuck The directory of .json file is assets/brewinandchewin/brewinandchewin/fluid_item_displays/default_displays.json