Examine source code of YoutubeVid2Invidious

{
  "manifest_version": 2,
  "name": "Youtube Video to Invdious",
  "description": "Redirects YouTube videos to Invidious. Regular YouTube browsing will not be redirected so you can make use of the YouTube algorithm and your subscriptions.",
  "version": "2.0",
  "content_scripts": [
    {
      "matches": [
        "<all_urls>"
      ],
      "js": [
        "redirect.js"
      ]
    }
  ],
  "options_ui": {
    "page": "options.html"
  },
  "permissions": [
    "storage"
  ],
  "browser_specific_settings": {
    "gecko": {
      "id": "yt2invid@dogbox.space"
    }
  }
}