Examine source code of JoinTheMeet

{
  "name": "JoinTheMeet",
  "description": "Connect automatically to blocked meeting when it's available. Uses Google Meet™. Icon made by Pixel perfect from www.flaticon.com",
  "version": "1.0.0",
  "icons": {
    "16": "icon.svg",
    "32": "icon.svg",
    "48": "icon.svg",
    "128": "icon.svg"
  },
  "background": {
    "scripts": [
      "background.js"
    ]
  },
  "browser_action": {
    "default_icon": {
      "16": "icon.svg",
      "32": "icon.svg",
      "48": "icon.svg",
      "128": "icon.svg"
    },
    "default_title": "JoinTheMeet"
  },
  "content_scripts": [
    {
      "matches": [
        "https://meet.google.com/*"
      ],
      "js": [
        "content.js"
      ]
    }
  ],
  "manifest_version": 2
}