PWA launch icon

Question

1. Is it possible to create & submit an PWA launcher icon to a website marketplace?
2. The launcher icon should work like a "Add to home screen" PWA function.

What I am trying to achieve is a PWA store making it easy for users to Add an icon to their homescreen for launching a PWA website. Please advice.

Answer 1

If you mean that in your web marketplace, you want to get the icons of submitted PWA then, you can get the PWA launch icons from either the link tags:

<link rel="icon" sizes="192x192" href="nice-highres.png"> (recommended)
<link rel="icon" sizes="128x128" href="niceicon.png">
<link rel="apple-touch-icon" sizes="128x128" href="niceicon.png">
<link rel="apple-touch-icon-precomposed" sizes="128x128" href="niceicon.png">

or from the manifest.json icons section:

{
  "short_name": "Maps",
  "name": "Google Maps",
  "icons": [
    {
      "src": "/images/icons-192.png",
      "type": "image/png",
      "sizes": "192x192"
    },
    {
      "src": "/images/icons-512.png",
      "type": "image/png",
      "sizes": "512x512"
    }
  ],
  "start_url": "/maps/?source=pwa",
  "background_color": "#3367D6",
  "display": "standalone",
  "scope": "/maps/",
  "theme_color": "#3367D6"
}