manifest.json

{
"name": "The name of your application",
"short_name": "This name will show in your Windows taskbar, in the start menu, and Android homescreen",
"start_url": "The URL that should be loaded when your application is opened",
"display": "standalone",
"description": "A description for your application",
"lang": " The default language of your application",
"dir": "auto",
"theme_color": "#000000",
"background_color": "#000000",
"orientation": "any",
"icons": [
    {
        "src": "https://www.pwabuilder.com/assets/icons/icon_512.png",
        "sizes": "512x512",
        "type": "image/png",
        "purpose": "maskable"
    },
    {
        "src": "https://www.pwabuilder.com/assets/icons/icon_192.png",
        "sizes": "192x192",
        "type": "image/png",
        "purpose": "any"
    }
],
"screenshots": [
    {
        "src": "https://www.pwabuilder.com/assets/screenshots/screen1.png",
        "sizes": "2880x1800",
        "type": "image/png",
        "description": "A screenshot of the home page"
    }
],
"related_applications": [
    {
        "platform":"windows",
        "url": " The URL to your app in that app store"
    }
],
"prefer_related_applications": "false",
"shortcuts": [
    {
        "name":"The name you would like to be displayed for your shortcut",
        "url":"The url you would like to open when the user chooses this shortcut. This must be a URL local to your PWA. For example: If my start_url is /, this URL must be something like /shortcut",
        "description":"A description of the functionality of this shortcut"
    }
]
}