mastodon/public/manifest.json

{
	"name": "Mastodon",
	"description": "Mastodon is a free, open-source social network server.",
	"icons": [
		{
			"src": "\/android-chrome-192x192.png",
			"sizes": "192x192",
			"type": "image\/png"
		}
	],
	"theme_color": "#ffffff",
	"display": "standalone",
	"start_url": "/web/timelines/home"
}