{
  "icons": [
    { "src": "icon-pt-192.png", "type": "image/png", "sizes": "192x192" },
    { "src": "icon-pt-512.png", "type": "image/png", "sizes": "512x512" },
    { "src": "icon-pt-192-maskable.png", "type": "image/png", "sizes": "192x192", "purpose": "maskable" },
    { "src": "icon-pt-512-maskable.png", "type": "image/png", "sizes": "512x512", "purpose": "maskable" }
  ]
}