MaterialApp
 │ state: _MaterialAppState#00000
 │
 └─ScrollConfiguration
   │ behavior: _MaterialScrollBehavior
   │
   └─WidgetsApp-[GlobalObjectKey _MaterialAppState#00000]
     │ state: _WidgetsAppState#00000
     │
     └─DefaultFocusTraversal
       └─MediaQuery
         │ data: MediaQueryData(size: Size(800.0, 600.0), devicePixelRatio:
         │   3.0, textScaleFactor: 1.0, platformBrightness:
         │   Brightness.light, padding: EdgeInsets.zero, viewPadding:
         │   EdgeInsets.zero, viewInsets: EdgeInsets.zero, physicalDepth:
         │   1.7976931348623157e+308, alwaysUse24HourFormat: false,
         │   accessibleNavigation: false, disableAnimations: false,
         │   invertColors: false, boldText: false)
         │
         └─Localizations
           │ locale: en_US
           │ delegates: DefaultMaterialLocalizations.delegate(en_US),
           │   DefaultCupertinoLocalizations.delegate(en_US),
           │   DefaultWidgetsLocalizations.delegate(en_US)
           │ state: _LocalizationsState#00000
           │
           └─Semantics
             │ container: false
             │ properties: SemanticsProperties
             │ label: null
...