{   "short_name":"Financial Calculator",
    "name":"Financial Calculator",
    "start_url": "/",
    "scope": "/",
"icons":[
    {
      "src": "favicon.ico",
      "sizes": "64x64 32x32 24x24 16x16",
      "type": "image/x-icon"
    },
    {
    "src":"/android-chrome-192x192.png",
    "sizes":"192x192",
    "type":"image/png"
    },
    {
    "src":"/android-chrome-512x512.png",
    "sizes":"512x512",
    "type":"image/png"
    }
    ],
    "theme_color":"#ffffff",
    "background_color":"#ffffff",
    "display":"standalone",
    "orientation": "portrait-primary"
}