Examine source code of Console Poly

{
  "manifest_version": 3,
  "name": "Console Poly",
  "version": "2.3.3",
  "description": "Tiện ích hỗ trợ Giảng viên - Trường Cao đẳng FPT Polytechnic.",
  "icons": {
    "16": "images/icon-16.png",
    "32": "images/icon-32.png",
    "48": "images/icon-48.png",
    "128": "images/icon-128.png"
  },
  "browser_specific_settings": {
    "gecko": {
      "id": "console-poly@cuongpham.vn"
    }
  },
  "permissions": [],
  "content_scripts": [
    {
      "js": [
        "scripts/content.js",
        "scripts/qrcode.js",
        "scripts/worker-encoder.js",
        "scripts/worker-decoder.js"
      ],
      "matches": [
        "http://gv.poly.edu.vn/*",
        "https://gv.poly.edu.vn/*",
        "https://*.poly.edu.vn/*",
        "https://meet.google.com/*"
      ]
    }
  ]
}