{
  "short_name": "CALC",
  "name":       "CALC",
  "icons": [
    {
      "src":   "images/favicons/192x192.png",
      "sizes": "192x192",
      "type":  "image/png"
    },
    {
      "src":   "images/favicons/512x512.png",
      "sizes": "512x512",
      "type":  "image/png"
    }
  ],
  "start_url":        ".",
  "display":          "standalone",
  "theme_color":      "black",
  "background_color": "black"
}