{
  "name": "计算练习 - 集盒",
  "short_name": "计算练习",
  "description": "小学 1–6 年级计算练习：自动出题、即时批改，覆盖整数、小数、分数、百分数、比、方程、负数，按年级给出预设题型，可按需微调并保存为个人配置，错题自动回收可重做，支持计时与打印题卷。数据纯本地、不上传。",
  "lang": "zh-CN",
  "dir": "ltr",
  "start_url": "/tool/math-drill",
  "scope": "/",
  "display": "standalone",
  "display_override": [
    "standalone",
    "minimal-ui"
  ],
  "orientation": "portrait",
  "background_color": "#007AFF",
  "theme_color": "#007AFF",
  "categories": [
    "utilities",
    "productivity"
  ],
  "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-maskable-512.png",
      "sizes": "512x512",
      "type": "image/png",
      "purpose": "maskable"
    }
  ]
}