Examine source code of Redirect to Google

{
  "manifest_version": 2,
  "name": "Custom New Tab Redirect",
  "version": "1.0",
  "description": "Replaces the new tab page with Google.",
  "chrome_url_overrides": {
    "newtab": "redirect.html"
  },
  "permissions": [],
  "host_permissions": [
    "https://www.google.com/"
  ],
  "browser_specific_settings": {
    "gecko": {
      "id": "{c37c6ece-1979-4e7b-a701-0f69902d6c7c}"
    }
  }
}