Examine source code of Ambient TV

{
  "manifest_version": 3,
  "version": "1.6.14",
  "name": "Ambient TV",
  "short_name": "Ambient TV",
  "description": "Ambient TV for the browser",
  "icons": {
    "16": "icon-16.png",
    "32": "icon-32.png",
    "192": "icon-192.png"
  },
  "permissions": [
    "geolocation"
  ],
  "chrome_url_overrides": {
    "newtab": "index.html"
  },
  "browser_specific_settings": {
    "gecko": {
      "id": "{ca39199c-5cf0-470e-bdf5-c5b41cf4375c}"
    }
  }
}