Examine source code of Knowledge Nuggets

{
  "manifest_version": 3,
  "name": "Knowledge Nuggets",
  "version": "1.0",
  "description": "Discover fascinating daily facts and expand your general knowledge with a single click. Fresh, curated knowledge nuggets delivered instantly.",
  "icons": {
    "48": "nugget-icon.png"
  },
  "action": {
    "default_popup": "index.html",
    "default_title": "Knowledge Nuggets"
  },
  "browser_specific_settings": {
    "gecko": {
      "id": "{b0578167-1bab-467c-a6c9-dd372d9f58a8}",
      "data_collection_permissions": {
        "required": [
          "none"
        ],
        "optional": []
      }
    }
  }
}