{
    "name": "Your Great Site",
    "short_name": "Site 😎",
    "description": "Learn how to create and share something or other.",
    "start_url": "/?homescreen=1",
    "background_color": "#000000",
    "theme_color": "#0f4a73",
    "icons": [{
      //"src": "icon-256.png",
      "sizes": "256x256",
      "type": "image/png"
    }]
  }