{
  "name": "Jack's Blog",
  "short_name": "JKB",
  "start_url": "/",
  "display": "standalone",
  "background_color": "#ffffff",
  "theme_color": "#222222",
  "icons": [
    { "src": "/favicon.png?v=2",     "sizes": "256x256", "type": "image/png" },
    { "src": "/icon-192.png?v=2",    "sizes": "192x192", "type": "image/png" },
    { "src": "/icon-512.png?v=2",    "sizes": "512x512", "type": "image/png" }
  ]
}