{
    "name": "BTCin",
    "short_name": "BTCin",
    "theme_color": "#2196f3",
    "background_color": "#2196f3",
    "display": "standalone",
    "scope": "/",
    "start_url": "/",
    "icons": [
      {
        "src": "logo-192.png",
        "sizes": "192x192",
        "type": "image/png"
      },
      {
        "src": "logo-256.png",
        "sizes": "256x256",
        "type": "image/png"
      },
      {
        "src": "logo-384.png",
        "sizes": "384x384",
        "type": "image/png"
      },
      {
        "src": "logo-512.png",
        "sizes": "512x512",
        "type": "image/png"
      },
      {
        "src": "logo-512.png", 
        "sizes": "512x512",
        "type": "image/png",
        "purpose": "maskable"
      }
    ]
  }