{
  "background_color": "#008CBA", 
  "categories": [
    "education", 
    "productivity"
  ], 
  "description": "MessageIn", 
  "display": "standalone", 
  "display_override": [
    "window-controls-overlay", 
    "standalone"
  ], 
  "edge_side_panel": {
    "preferred_width": 400
  }, 
  "icons": [
    {
      "sizes": "192x192", 
      "src": "/static/images/logo.ico", 
      "type": "image/x-icon"
    }, 
    {
      "sizes": "512x512", 
      "src": "/static/images/logo.ico", 
      "type": "image/x-icon"
    }
  ], 
  "lang": "zh-CN", 
  "launch_handler": {
    "client_mode": "focus-existing"
  }, 
  "name": "MessageIn", 
  "orientation": "portrait-primary", 
  "scope": "/", 
  "short_name": "\u6d88\u606f\u7ba1\u7406", 
  "start_url": "/home", 
  "theme_color": "#008CBA"
}