{
  "background_color": "purple",
  "display": "standalone",
  "icons": [
    {
      "src": "images/calculator.png",
      "sizes": "192x192",
      "type": "image/png"
    }
  ],
  "name": "الآلة الحاسبة",
  "short_name": "الحاسبة",
  "start_url": "/calculator/"
}