Examine source code of Curious Cat Serenity

{
  "manifest_version": 2,
  "name": "Curious Cat Serenity",
  "version": "1.0.0",
  "description": "An adorable Scottish Fold cat with large amber eyes, peering out from a soft, cozy background.",
  "icons": {
    "128": "icon-128.png"
  },
  "permissions": [
    "geolocation"
  ],
  "chrome_url_overrides": {
    "newtab": "index.html"
  },
  "browser_specific_settings": {
    "gecko": {
      "id": "{ca533bcd-925f-405e-900a-826d7871bed9}"
    }
  }
}