{
  "name": "計算履歴電卓",
  "short_name": "履歴電卓",
  "description": "計算式と結果を履歴として残せる無料Web電卓",
  "start_url": "/calculator/",
  "display": "standalone",
  "background_color": "#1c1c1e",
  "theme_color": "#ff9f0a",
  "lang": "ja",
  "icons": [
    {
      "src": "data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 192 192'%3E%3Crect width='192' height='192' rx='40' fill='%231c1c1e'/%3E%3Ctext x='96' y='130' font-size='100' text-anchor='middle' fill='%23ff9f0a' font-family='system-ui'%3E%3D%3C/text%3E%3C/svg%3E",
      "sizes": "192x192",
      "type": "image/svg+xml",
      "purpose": "any maskable"
    }
  ]
}