{
    "short_name": "NowVoice", 
    "name": "NowVoice", 
    "icons": [  
        {
         "src": "logo.png",
         "sizes": "192x192",
         "type": "image/png"
        },
        {
         "src": "logo.png",
         "sizes": "512x512",
         "type": "image/png"
        }
    ],
    "start_url": "./index.html", 
    "display": "standalone", 
    "background_color": "#ffffff", 
    "theme_color": "#ffffff"
  }