fantasysmp-cit/assets/fantasysmp/equipment/dragon.json

{
    "layers": {
        "humanoid": [
            {
            "texture": "fantasysmp:dragon"
            }
        ],
        "humanoid_leggings": [
            {
            "texture": "fantasysmp:dragon"
            }
        ],
        "wings": [
            {
                "texture": "fantasysmp:dragon",
                "use_player_texture": false
            }
        ]
    }
}