delete previous annotates

com.unity.uiwidgets/Runtime/widgets/app.cs

                       "pageRouteBuilder must be specified so that the default handler " +
                       "will know what kind of PageRoute transition to build."
             );
-        }
-
+        } 
+        // [!!!]too many errors here
         /*public static readonly Dictionary<LogicalKeySet, Intent> _defaultShortcuts = new Dictionary<LogicalKeySet, Intent>(){
     // Activation
     {new LogicalKeySet(LogicalKeyboardKey.enter), new Intent(ActivateAction.key)},

com.unity.uiwidgets/Runtime/widgets/automatic_keep_alive.cs

 
             return false;
         }
-
-        /*ParentDataElement _getChildElement() {
-            D.assert(mounted);
-            Element element = (Element) context;
-            Element childElement = null;
-            element.visitChildren((Element child) => { childElement = child; });
-
-            D.assert(childElement == null || childElement is ParentDataElement);
-            return (ParentDataElement) childElement;
-        }*/
+        
         ParentDataElement<KeepAliveParentDataMixin> _getChildElement() {
             D.assert(mounted);
             Element element = (Element) context;
             D.assert(childElement == null || childElement is ParentDataElement<KeepAliveParentDataMixin>);
             return (ParentDataElement<KeepAliveParentDataMixin>) childElement;
         }
-
-        //void _updateParentDataOfChild(ParentDataElement childElement) {
-         //   childElement.applyWidgetOutOfTurn((ParentDataWidget<KeepAliveParentDataMixin>) build(context));
-       // }
+        
        void _updateParentDataOfChild(ParentDataElement<KeepAliveParentDataMixin> childElement) {
            childElement.applyWidgetOutOfTurn((ParentDataWidget<KeepAliveParentDataMixin>) build(context));
        }

com.unity.uiwidgets/Runtime/widgets/basic.cs

         }
     }
     
+    //[!!!] class Flow?
     /*public class Flow : MultiChildRenderObjectWidget {
         /// Creates a flow layout.
         ///

com.unity.uiwidgets/Runtime/widgets/color_filter.cs

 namespace Unity.UIWidgets.widgets {
     
         public class ColorFiltered : SingleChildRenderObjectWidget {
-            /// Creates a widget that applies a [ColorFilter] to its child.
-            ///
-            /// The [colorFilter] must not be null.
-
-            /// The color filter to apply to the child of this widget.
+            
             public readonly ColorFilter colorFilter;
             
             public override RenderObject createRenderObject(BuildContext context) => new _ColorFilterRenderObject(colorFilter);

com.unity.uiwidgets/Runtime/widgets/disposable_build_context.cs

 namespace Unity.UIWidgets.widgets {
     
     public class DisposableBuildContext<T> where T : State{
-        /// Creates an object that provides access to a [BuildContext] without leaking
-        /// a [State].
-        ///
-        /// Creators must call [dispose] when the [State] is disposed.
-        ///
-        /// The [State] must not be null, and [State.mounted] must be true.
+
         public DisposableBuildContext(T state) {
             D.assert(_state != null);
             D.assert(_state.mounted, () => "A DisposableBuildContext was given a BuildContext for an Element that is not mounted.");
-
-        /// Provides safe access to the build context.
-        ///
-        /// If [dispose] has been called, will return null.
-        ///
-        /// Otherwise, asserts the [_state] is still mounted and returns its context.
+        
         public BuildContext context {
             get {
                 D.assert(_debugValidate());
                 return _state.context;
             }
         }
-
-        /// Called from asserts or tests to determine whether this object is in a
-        /// valid state.
-        ///
-        /// Always returns true, but will assert if [dispose] has not been called
-        /// but the state this is tracking is unmounted.
+        
         public bool _debugValidate() {
             D.assert(
                 _state == null || _state.mounted,() =>
             return true;
         }
         
-        /// Marks the [BuildContext] as disposed.
-        ///
-        /// Creators of this object must call [dispose] when their [Element] is
-        /// unmounted, i.e. when [State.dispose] is called.
         void dispose() {
             _state = null;
         }

com.unity.uiwidgets/Runtime/widgets/form.cs

             get { return _errorText != null; }
         }
 
+        //[!!!] call?
         /*public bool isValid {
             get {
                 return widget.validator?.call(_value) == null;

com.unity.uiwidgets/Runtime/widgets/icon.cs

         public override void debugFillProperties(DiagnosticPropertiesBuilder properties) {
             base.debugFillProperties(properties);
             properties.add(new IconDataProperty("icon", icon, ifNull: "<empty>", showName: false));
-            properties.add(new FloatProperty("size", size, defaultValue: null));//[!!!] DoubleProperty -> FloatProperty
+            properties.add(new FloatProperty("size", size, defaultValue: null));
             properties.add(new ColorProperty("color", color, defaultValue: null));
         }
     }

com.unity.uiwidgets/Runtime/widgets/icon_data.cs

         }
     }
     
-    /// [DiagnosticsProperty] that has an [IconData] as value.
-        /// Create a diagnostics property for [IconData].
-        ///
-        /// The [showName], [style], and [level] arguments must not be null.
         public IconDataProperty(
             String name,
             IconData value,