{ "name": "Jacs Mart", "short_name": "Jacs Mart", "start_url": "/app/", "scope": "/app/", "display": "standalone",
  "background_color": "#ffffff", "theme_color": "#0b6b3a", "orientation": "portrait",
  "icons": [ { "src": "icon-192.png", "sizes": "192x192", "type": "image/png" }, { "src": "icon-512.png", "sizes": "512x512", "type": "image/png", "purpose": "any maskable" } ] }