Examine source code of MeetIn - Get ready for MS Teams meeting

{
  "manifest_version": 3,
  "name": "MeetIn - Get ready for MS Teams meeting",
  "version": "1.4.0",
  "description": "No more wasting time adjusting your mic, camera, or name before every meeting. MeetIn automatically configures your pre-join settings in Microsoft Teams, so you can join faster, smoother, and more professionally.",
  "permissions": [
    "storage",
    "scripting"
  ],
  "host_permissions": [
    "*://teams.microsoft.com/*",
    "*://*.teams.live.com/*"
  ],
  "action": {
    "default_popup": "popup/popup.html"
  },
  "author": "Elten",
  "icons": {
    "16": "icons/icon-16.png",
    "48": "icons/icon-48.png",
    "128": "icons/icon-128.png"
  },
  "content_scripts": [
    {
      "matches": [
        "*://teams.microsoft.com/*",
        "*://*.teams.live.com/*"
      ],
      "js": [
        "default_selectors.js",
        "selectors.js",
        "content.js"
      ],
      "run_at": "document_idle"
    }
  ],
  "browser_specific_settings": {
    "gecko": {
      "id": "msteamsprejoinhelper@el10.cc",
      "strict_min_version": "109.0",
      "data_collection_permissions": {
        "required": [
          "none"
        ]
      }
    }
  }
}