public/manifest.json

   1 {
   2   "short_name": "React App",
   3   "name": "Create React App Sample",
   4   "icons": [
   5     {
   6       "src": "favicon.ico",
   7       "sizes": "192x192",
   8       "type": "image/png"
   9     }
  10   ],
  11   "start_url": "./index.html",
  12   "display": "standalone",
  13   "theme_color": "#000000",
  14   "background_color": "#ffffff"
  15 }