Examine source code of Google Meet Customization

{
  "manifest_version": 2,
  "name": "Google Meet Customization",
  "version": "1.1",
  "description": "Customize Google Meet settings like camera and audio.",
  "permissions": [
    "storage"
  ],
  "content_scripts": [
    {
      "matches": [
        "*://meet.google.com/*"
      ],
      "js": [
        "main.js"
      ],
      "run_at": "document_idle"
    }
  ],
  "browser_specific_settings": {
    "gecko": {
      "id": "google_meet_customization@spacemason.com"
    }
  }
}