{
  "name": "速算练习",
  "short_name": "速算",
  "start_url": "/",
  "scope": "/",
  "display": "standalone",
  "orientation": "portrait",
  "background_color": "#ffffff",
  "theme_color": "#ffffff",
  "lang": "zh-CN",
  "icons": [
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    { "src": "/pwa-512.png", "sizes": "512x512", "type": "image/png", "purpose": "any" },
    { "src": "/masked-icon.svg", "sizes": "any", "type": "image/svg+xml", "purpose": "maskable" }
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}