{
  "name": "速算练习",
  "short_name": "速算",
  "description": "心算速算练习工具，支持平方、乘法等多种速算法",
  "start_url": "/index.html",
  "display": "standalone",
  "orientation": "portrait",
  "background_color": "#F5F7FA",
  "theme_color": "#4A90D9",
  "icons": [
    {
      "src": "icons/icon-192.png",
      "sizes": "192x192",
      "type": "image/png",
      "purpose": "any"
    },
    {
      "src": "icons/icon-512.png",
      "sizes": "512x512",
      "type": "image/png",
      "purpose": "any"
    },
    {
      "src": "icons/icon-512.png",
      "sizes": "512x512",
      "type": "image/png",
      "purpose": "maskable"
    }
  ],
  "screenshots": [
    {
      "src": "icons/screenshot-mobile.png",
      "sizes": "750x1334",
      "type": "image/png",
      "form_factor": "narrow"
    },
    {
      "src": "icons/screenshot-wide.png",
      "sizes": "750x1334",
      "type": "image/png",
      "form_factor": "wide"
    }
  ]
}