{
  "loader": "forge:multi-layer",
  "parent": "block/block",
  "textures": {
    "particle": "{particle}"
  },
  "layers": {
    "{bg_layer}": {
      "parent": "{bg}"
    },
    "{fg_layer}": {
      "parent": "osv:block/overlay",
      "textures": {
        "overlay": "{fg}"
      }
    }
  }
}
