Examine source code of Wine Legends Quiz

{
  "manifest_version": 2,
  "name": "Wine Legends Quiz",
  "version": "1.0",
  "description": "Famous wines & regions quiz from Vietnamese clues.",
  "icons": {
    "48": "wine_icon.png"
  },
  "browser_action": {
    "default_popup": "index.html",
    "default_title": "Wine Legends Quiz"
  },
  "permissions": [],
  "browser_specific_settings": {
    "gecko": {
      "id": "{a0f8f271-d817-4392-85cb-9e71cf2b10b8}",
      "data_collection_permissions": {
        "required": [
          "none"
        ],
        "optional": []
      }
    }
  }
}