Examine source code of PrivaTab Guardian

{
  "manifest_version": 3,
  "name": "PrivaTab Guardian",
  "version": "1.0",
  "description": "Quickly switch specific tabs to private browsing mode and enhance tab privacy",
  "icons": {
    "48": "icons/icon-48.png",
    "96": "icons/icon-96.png"
  },
  "browser_specific_settings": {
    "gecko": {
      "id": "privatabguardian@example.com"
    }
  },
  "permissions": [
    "tabs",
    "storage",
    "contextMenus",
    "browsingData"
  ],
  "background": {
    "scripts": [
      "background.js"
    ]
  },
  "action": {
    "default_popup": "popup/popup.html",
    "default_icon": {
      "48": "icons/icon-48.png",
      "96": "icons/icon-96.png"
    }
  },
  "options_ui": {
    "page": "options/options.html"
  }
}