Examine source code of Google Meet admit

{
  "name": "Google Meet admit",
  "description": "A simple extention which will admit all the people asking to admit the meeting.",
  "version": "0.0.2",
  "manifest_version": 2,
  "content_scripts": [
    {
      "matches": [
        "*://meet.google.com/*"
      ],
      "js": [
        "main.js"
      ]
    }
  ],
  "browser_action": {
    "browser_style": true,
    "default_title": "Google Meet Admit"
  },
  "icons": {
    "16": "icon16.png",
    "48": "icon48.png",
    "128": "icon128.png"
  }
}