{
  "name": "IsItTheWeekendYet?",
  "icons": [
    {
      "src": "favicon.png",
      "sizes": "48x48",
      "type": "image/png",
      "density": 1.0
    },
    {
      "src": "favicon.png",
      "sizes": "96x96",
      "type": "image/png",
      "density": 2.0
    },
    {
      "src": "favicon.png",
      "sizes": "144x144",
      "type": "image/png",
      "density": 3.0
    },
    {
      "src": "favicon.png",
      "sizes": "192x192",
      "type": "image/png",
      "density": 4.0
    }
  ],
  "start_url": "/",
  "display": "standalone",
  "orientation": "portrait",
  "background_color": "#FFFFFF"
}

{
  "name": "IsItTheWeekendYet?",
  "short_name": "Weekend?",
  "icons": [
    {
      "src": "favicon.png",
      "sizes": "48x48",
      "type": "image/png",
      "density": 1.0
    },
    {
      "src": "favicon.png",
      "sizes": "96x96",
      "type": "image/png",
      "density": 2.0
    },
    {
      "src": "favicon.png",
      "sizes": "144x144",
      "type": "image/png",
      "density": 3.0
    },
    {
      "src": "favicon.png",
      "sizes": "192x192",
      "type": "image/png",
      "density": 4.0
    }
  ],
  "start_url": "/",
  "display": "standalone",
  "orientation": "portrait",
  "background_color": "#000000"
}

Add short name and change default background color
Add short name and change default background color