Examine source code of This IP

{
  "name": "This IP",
  "description": "Instantly see the IP address of any website you visit",
  "version": "1.0.3",
  "manifest_version": 3,
  "icons": {
    "16": "images/icon-16.png",
    "48": "images/icon-48.png",
    "128": "images/icon-128.png"
  },
  "action": {
    "default_popup": "popup/popup.html",
    "default_icon": {
      "16": "images/icon-16.png",
      "48": "images/icon-48.png"
    }
  },
  "background": {
    "scripts": [
      "scripts/background.js"
    ],
    "service_worker": "scripts/background.js"
  },
  "content_scripts": [
    {
      "matches": [
        "<all_urls>"
      ],
      "js": [
        "scripts/content.js"
      ],
      "css": [
        "scripts/content.css"
      ],
      "run_at": "document_idle"
    }
  ],
  "permissions": [
    "activeTab",
    "storage",
    "alarms",
    "webRequest"
  ],
  "host_permissions": [
    "<all_urls>"
  ],
  "browser_specific_settings": {
    "gecko": {
      "id": "thisip@nh4ttruong.github.io",
      "data_collection_permissions": {
        "required": [
          "none"
        ]
      }
    }
  }
}