all warnings have been resolved

Samples/UIWidgetsSamples_2019_4/Assets/Scene/GalleryTest.unity

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   m_CustomReflection: {fileID: 0}
   m_Sun: {fileID: 0}
-  m_IndirectSpecularColor: {r: 0, g: 0, b: 0, a: 1}
+  m_IndirectSpecularColor: {r: 0.44657874, g: 0.49641275, b: 0.5748172, a: 1}
   m_UseRadianceAmbientProbe: 0
 --- !u!157 &3
 LightmapSettings:
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-  m_Texture: {fileID: 0}
+  m_Texture: {fileID: 1690112868}
   m_UVRect:
     serializedVersion: 2
     x: 0
+  devicePixelRatioEditorOnlyOverride: 0
   fonts:
   - family: Material Icons
     fonts:
     fonts:
     - asset: gallery/GalleryIcons.ttf
       weight: 0
-  devicePixelRatioOverride: 1
-  hardwareAntiAliasing: 0
 --- !u!222 &847097471
 CanvasRenderer:
   m_ObjectHideFlags: 0
   m_Father: {fileID: 0}
   m_RootOrder: 0
   m_LocalEulerAnglesHint: {x: 90, y: 180, z: 0}
+--- !u!28 &1690112868
+Texture2D:
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+  m_CorrespondingSourceObject: {fileID: 0}
+  m_PrefabInstance: {fileID: 0}
+  m_PrefabAsset: {fileID: 0}
+  m_Name: 
+  m_ImageContentsHash:
+    serializedVersion: 2
+    Hash: 00000000000000000000000000000000
+  m_ForcedFallbackFormat: 4
+  m_DownscaleFallback: 0
+  serializedVersion: 2
+  m_Width: 0
+  m_Height: 0
+  m_CompleteImageSize: 0
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+  m_TextureSettings:
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 GameObject:
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com.unity.uiwidgets/Runtime/painting/binding.cs

                 shaderWarmUp.execute();
             }
         }
-
-#pragma warning disable CS0108
+        
-#pragma warning restore CS0108
 
         public static ShaderWarmUp shaderWarmUp = new DefaultShaderWarmUp();
 

com.unity.uiwidgets/Runtime/rendering/RenderAnimatedOpacityMixin.mixin.gen.cs

             return true;
         }
         
-        public ChildType child { get; set; }
+        public new ChildType child { get; set; }
         
         RenderObject RenderObjectWithChildMixin.child {
             get { return child; }

com.unity.uiwidgets/Runtime/rendering/RenderAnimatedOpacityMixin.mixin.njk

             return true;
         }
         
-        public ChildType child { get; set; }
+        public new ChildType child { get; set; }
         
         RenderObject RenderObjectWithChildMixin.child {
             get { return child; }

com.unity.uiwidgets/Runtime/rendering/binding.cs

 namespace Unity.UIWidgets.rendering {
     public class RendererBinding : SchedulerBinding {
         
-#pragma warning disable CS0108
-#pragma warning restore CS0108
 
         protected override void initInstances() {
             base.initInstances();

com.unity.uiwidgets/Runtime/rendering/object.cs

     }
 
     public interface RenderObjectWithChildMixin<ChildType> : RenderObjectWithChildMixin where ChildType : RenderObject {
-        ChildType child { get; set; }
+        new ChildType child { get; set; }
     }
 
     public interface ContainerParentDataMixin<ChildType> : IParentData where ChildType : RenderObject {

com.unity.uiwidgets/Runtime/scheduler/binding.cs

 
 
         public SchedulingStrategy schedulingStrategy = scheduler_.defaultSchedulingStrategy;
-
-#pragma warning disable CS0108
+        
-#pragma warning restore CS0108
 
         public AppLifecycleState? lifecycleState { get; private set; }
 

com.unity.uiwidgets/Runtime/services/binding.cs

             //SystemChannels.system.setMessageHandler(handleSystemMessage);
         }
         
-#pragma warning disable CS0108
-#pragma warning restore CS0108
 
         public BinaryMessenger defaultBinaryMessenger => _defaultBinaryMessenger;
         BinaryMessenger _defaultBinaryMessenger;

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

     public abstract class RenderObjectElement : Element {
         protected RenderObjectElement(RenderObjectWidget widget) : base(widget) {
         }
-
-#pragma warning disable CS0108
+        
-#pragma warning restore CS0108
 
         RenderObject _renderObject;
         

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

         public _InheritedNotifierElement(InheritedNotifier<T> widget) : base(widget) {
             widget.notifier?.addListener(_handleUpdate);
         }
-
-#pragma warning disable CS0108
+        
-#pragma warning restore CS0108
-        
+
         //In flutter this variable is named as _dirty and hides the property of its parent with the name variable name
         //We give it a new name, i.e., _notifier_dirty in UIWidgets so that the code looks more clear
         bool _notifier_dirty = false;

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

     public class _SliverOffstageElement : SingleChildRenderObjectElement {
         public _SliverOffstageElement(SliverOffstage widget) : base(widget) {
         }
-
-#pragma warning disable CS0108
+        
-#pragma warning restore CS0108
 
         public override void debugVisitOnstageChildren(ElementVisitor visitor) {
             if (!widget.offstage)

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

         }
 
         
-        internal RenderSliver _child;
+        internal new RenderSliver _child;
-        public RenderSliver child {
+        public new RenderSliver child {
             get { return _child; }
             set {
                 if (_child != null) {

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

-using System.Collections.Generic;
 using Unity.UIWidgets.foundation;
 using Unity.UIWidgets.painting;
 using Unity.UIWidgets.rendering;
                 D.assert(child != null && child.hasSize);
                 return constraints.axis == Axis.vertical ? child.size.height : child.size.width;
             }
-            set { }
+            set {
+            }
         }
     }