Examine source code of Tab Time Tracker v2

{
  "manifest_version": 3,
  "name": "Tab Time Tracker",
  "description": "Tab Time Tracker is a simple and intuitive extension that helps you monitor your daily browsing habits.",
  "version": "2.1.0",
  "permissions": [
    "storage",
    "activeTab",
    "scripting",
    "tabs",
    "notifications"
  ],
  "background": {
    "service_worker": "background.js",
    "scripts": [
      "background.js"
    ]
  },
  "browser_specific_settings": {
    "gecko": {
      "id": "tabtimetracker@gmail.com",
      "data_collection_permissions": {
        "required": [
          "none"
        ],
        "optional": []
      }
    }
  },
  "content_scripts": [
    {
      "matches": [
        "<all_urls>"
      ],
      "js": [
        "content.js"
      ]
    }
  ],
  "web_accessible_resources": [
    {
      "resources": [
        "images/image.png"
      ],
      "matches": [
        "<all_urls>"
      ]
    }
  ],
  "action": {
    "default_popup": "popup.html"
  },
  "icons": {
    "16": "images/image.png",
    "48": "images/image.png",
    "128": "images/image.png"
  }
}