bedrock-samples/resource_pack/render_controllers/panda.render_controllers.json

{
  "format_version": "1.8.0",
  "render_controllers": {
    "controller.render.panda": {
      "arrays": {
        "textures": {
          "Array.skins": [
            "Texture.default",
            "Texture.lazy",
            "Texture.worried",
            "Texture.playful",
            "Texture.brown",
            "Texture.weak",
            "Texture.aggressive"
          ]
        }
      },
      "geometry": "Geometry.default",
      "materials": [ { "*": "Material.default" } ],
      "textures": [ "Array.skins[query.variant]" ]
    }
  }
}