Examine source code of Uhuu Video

{
  "manifest_version": 2,
  "name": "Uhuu Video",
  "description": "Extensión para programar reuniones en el calendario",
  "version": "1.0.0",
  "content_scripts": [
    {
      "matches": [
        "https://calendar.google.com/calendar/*",
        "https://outlook.live.com/owa/*"
      ],
      "js": [
        "js/jquery.js",
        "js/RandomUtil.js",
        "js/RoomnameGenerator.js",
        "js/meet-calendar.js"
      ],
      "css": [
        "/css/all.css"
      ],
      "all_frames": false,
      "run_at": "document_end"
    }
  ],
  "permissions": [
    "https://calendar.google.com/*"
  ],
  "externally_connectable": {
    "matches": [
      ":uhuu.video/"
    ]
  },
  "web_accessible_resources": [
    "uhuu-logo-48x48.png",
    "uhuu-logo-white-48x48.png",
    "uhuu-logo-blue.svg",
    "uhuu-logo-grey.svg"
  ],
  "browser_action": {
    "default_title": "Crear Uhuu Video",
    "default_popup": "popup.html"
  },
  "icons": {
    "16": "/images/uhuu-logo16.png",
    "32": "/images/uhuu-logo32.png",
    "48": "/images/uhuu-logo48.png",
    "128": "/images/uhuu-logo128.png"
  }
}