Examine source code of Custom New Tab v2

{
  "manifest_version": 2,
  "name": "Custom New Tab",
  "version": "1.0",
  "description": "Enhance your new tab page with a custom background, clock, search bar, and quick links.",
  "icons": {
    "48": "icon.png"
  },
  "chrome_url_overrides": {
    "newtab": "popup.html"
  },
  "permissions": [
    "storage"
  ],
  "browser_specific_settings": {
    "gecko": {
      "id": "{251dcf8c-bec3-4ff3-a747-624ec7993e02}"
    }
  }
}