vail/static/manifest.json

{
  "name": "Vail: Morse Code",
  "short_name": "Vail",
  "start_url": ".",
  "display": "standalone",
  "background_color": "#fff",
  "theme_color": "#009688",
  "description": "Internet Morse Code client",
  "icons": [
    {"src": "assets/vail.png", "sizes": "250x250"},
    {"src": "assets/vail.svg", "sizes": "150x150"}
  ]
}