{
  "short_name": "地图街景",
  "name": "深圳安视源无线链路计算工具Online Fresnel Zone Calculator",
  "icons": [
    {
      "src": "/calc/images/icon.png",
      "sizes": "180x180",
      "type": "image/png"
    }
  ],
  "start_url": "/calc/?utm_source=homescreen",
  "display": "standalone",
  "background_color": "#000000",
  "theme_color": "#000000"
}