Examine source code of Meeting helper

{
  "manifest_version": 2,
  "name": "Meeting helper",
  "version": "2.0.1",
  "description": "Record attend time and leave time and live show who is muted, who's video off, absent members",
  "author": "Mahmudul Alam",
  "permissions": [
    "tabs",
    "storage"
  ],
  "content_scripts": [
    {
      "matches": [
        "*://meet.google.com/*",
        "*://zoom.us/*",
        "*://*.zoom.us/*"
      ],
      "js": [
        "src/attendance.js"
      ]
    }
  ],
  "browser_action": {
    "default_icon": "images/Meet.png",
    "default_popup": "src/popup.html",
    "default_title": "Meeting Helper"
  }
}