{
    "short_name": "Jack777",
    "name": "Jack777", 
    "description": "The app that helps you play game", 
    "theme_color": "#0f131b", 
    "background_color": "#0f131b",
    "display": "standalone", 
    "icons": [
      
      {
        "src": "192.png",
        "sizes": "192x192",
        "type": "image/png"
      },
      {
        "src": "512.png",
        "sizes": "512x512",
        "type": "image/png"
      }
    ],
    "start_url": "/"
  }