tabler/site/public/favicons/manifest.webapp

{
  "version": 1,
  "name": "tabler",
  "description": null,
  "icons": {
    "60": "/img/favicons/firefox_app_60x60.png",
    "128": "/img/favicons/firefox_app_128x128.png",
    "512": "/img/favicons/firefox_app_512x512.png"
  },
  "developer": {
    "name": "Paweł Kuna",
    "url": null
  }
}