Remove options to allow users to control if they want fading or not.

src/Features/Core/Portable/Diagnostics/Analyzers/RemoveUnnecessaryCastDiagnosticAnalyzerBase.cs

@@ -14,12 +14,12 @@ internal abstract class RemoveUnnecessaryCastDiagnosticAnalyzerBase<TLanguageKin
         private static readonly LocalizableString s_localizableMessage = new LocalizableResourceString(nameof(WorkspacesResources.Cast_is_redundant), WorkspacesResources.ResourceManager, typeof(WorkspacesResources));
 
         private static readonly DiagnosticDescriptor s_descriptor = new DiagnosticDescriptor(IDEDiagnosticIds.RemoveUnnecessaryCastDiagnosticId,
-                                                                    s_localizableTitle,
-                                                                    s_localizableMessage,
-                                                                    DiagnosticCategory.Style,
-                                                                    DiagnosticSeverity.Hidden,
-                                                                    isEnabledByDefault: true,
-                                                                    customTags: DiagnosticCustomTags.Unnecessary);
+            s_localizableTitle,
+            s_localizableMessage,
+            DiagnosticCategory.Style,
+            DiagnosticSeverity.Hidden,
+            isEnabledByDefault: true,
+            customTags: DiagnosticCustomTags.Unnecessary);
 
         #region Interface methods
 

src/Features/Core/Portable/Fading/FadingOptions.cs

+// Copyright (c) Microsoft.  All Rights Reserved.  Licensed under the Apache License, Version 2.0.  See License.txt in the project root for license information.
+
+using Microsoft.CodeAnalysis.Options;
+
+namespace Microsoft.CodeAnalysis.Fading
+{
+    internal static class FadingOptions
+    {
+        public static readonly PerLanguageOption<bool> FadeOutUnusedImports = new PerLanguageOption<bool>(
+            nameof(FadingOptions), nameof(FadeOutUnusedImports), defaultValue: true,
+            storageLocations: new RoamingProfileStorageLocation($"TextEditor.%LANGUAGE%.Specific.{nameof(FadeOutUnusedImports)}"));
+
+        public static readonly PerLanguageOption<bool> FadeOutUnnecessaryCasts = new PerLanguageOption<bool>(
+            nameof(FadingOptions), nameof(FadeOutUnnecessaryCasts), defaultValue: true,
+            storageLocations: new RoamingProfileStorageLocation($"TextEditor.%LANGUAGE%.Specific.{nameof(FadeOutUnnecessaryCasts)}"));
+
+        public static readonly PerLanguageOption<bool> FadeOutUnreachableCode = new PerLanguageOption<bool>(
+            nameof(FadingOptions), nameof(FadeOutUnreachableCode), defaultValue: true,
+            storageLocations: new RoamingProfileStorageLocation($"TextEditor.%LANGUAGE%.Specific.{nameof(FadeOutUnreachableCode)}"));
+
+        public static readonly PerLanguageOption<bool> FadeOutNullChecksThatCanBeSimplified = new PerLanguageOption<bool>(
+            nameof(FadingOptions), nameof(FadeOutNullChecksThatCanBeSimplified), defaultValue: true,
+            storageLocations: new RoamingProfileStorageLocation($"TextEditor.%LANGUAGE%.Specific.{nameof(FadeOutNullChecksThatCanBeSimplified)}"));
+
+        public static readonly PerLanguageOption<bool> FadeOutInitializersThatCanBeSimplified = new PerLanguageOption<bool>(
+            nameof(FadingOptions), nameof(FadeOutInitializersThatCanBeSimplified), defaultValue: true,
+            storageLocations: new RoamingProfileStorageLocation($"TextEditor.%LANGUAGE%.Specific.{nameof(FadeOutInitializersThatCanBeSimplified)}"));
+
+        public static readonly PerLanguageOption<bool> FadeOutDefaultExpressionsThatCanBeSimplified = new PerLanguageOption<bool>(
+            nameof(FadingOptions), nameof(FadeOutDefaultExpressionsThatCanBeSimplified), defaultValue: true,
+            storageLocations: new RoamingProfileStorageLocation($"TextEditor.%LANGUAGE%.Specific.{nameof(FadeOutDefaultExpressionsThatCanBeSimplified)}"));
+    }
+}
\ No newline at end of file

src/Features/Core/Portable/Features.csproj

@@ -149,6 +149,7 @@
     <Compile Include="CodeFixes\FixAllOccurrences\FixSomeCodeAction.cs" />
     <Compile Include="AddPackage\InstallPackageDirectlyCodeAction.cs" />
     <Compile Include="AddConstructorParametersFromMembers\State.cs" />
+    <Compile Include="Fading\FadingOptions.cs" />
     <Compile Include="FeaturesResources.Designer.cs">
       <AutoGen>True</AutoGen>
       <DesignTime>True</DesignTime>

src/VisualStudio/CSharp/Impl/Options/AdvancedOptionPageControl.xaml

@@ -61,6 +61,23 @@
                               Content="{x:Static local:AdvancedOptionPageStrings.Option_Collapse_regions_when_collapsing_to_definitions}" />
                 </StackPanel>
             </GroupBox>
+            <GroupBox x:Uid="FadingGroupBox"
+                      Header="{x:Static local:AdvancedOptionPageStrings.Option_Fading}">
+                <StackPanel>
+                    <CheckBox x:Name="Fade_out_unused_usings"
+                              Content="{x:Static local:AdvancedOptionPageStrings.Option_Fade_out_unused_usings}" />
+                    <CheckBox x:Name="Fade_out_unnecessary_casts"
+                              Content="{x:Static local:AdvancedOptionPageStrings.Option_Fade_out_unnecessary_casts}" />
+                    <CheckBox x:Name="Fade_out_unreachable_code"
+                              Content="{x:Static local:AdvancedOptionPageStrings.Option_Fade_out_unreachable_code}" />
+                    <CheckBox x:Name="Fade_out_null_checks_that_can_be_simplified"
+                              Content="{x:Static local:AdvancedOptionPageStrings.Option_Fade_out_null_checks_that_can_be_simplified}" />
+                    <CheckBox x:Name="Fade_out_initializers_that_can_be_simplified"
+                              Content="{x:Static local:AdvancedOptionPageStrings.Option_Fade_out_initializers_that_can_be_simplified}" />
+                    <CheckBox x:Name="Fade_out_default_expressions_that_can_be_simplified"
+                              Content="{x:Static local:AdvancedOptionPageStrings.Option_Fade_out_default_expressions_that_can_be_simplified}" />
+                </StackPanel>
+            </GroupBox>
             <GroupBox x:Uid="BlockStructureGuidesGroupBox"
                       Header="{x:Static local:AdvancedOptionPageStrings.Option_Block_Structure_Guides}">
                 <StackPanel>

src/VisualStudio/CSharp/Impl/Options/AdvancedOptionPageControl.xaml.cs

@@ -6,6 +6,7 @@
 using Microsoft.CodeAnalysis.Editor.CSharp.SplitStringLiteral;
 using Microsoft.CodeAnalysis.Editor.Shared.Options;
 using Microsoft.CodeAnalysis.ExtractMethod;
+using Microsoft.CodeAnalysis.Fading;
 using Microsoft.CodeAnalysis.ImplementType;
 using Microsoft.CodeAnalysis.Remote;
 using Microsoft.CodeAnalysis.Structure;
@@ -34,6 +35,13 @@ public AdvancedOptionPageControl(IServiceProvider serviceProvider) : base(servic
             BindToOption(Show_outlining_for_comments_and_preprocessor_regions, BlockStructureOptions.ShowOutliningForCommentsAndPreprocessorRegions, LanguageNames.CSharp);
             BindToOption(Collapse_regions_when_collapsing_to_definitions, BlockStructureOptions.CollapseRegionsWhenCollapsingToDefinitions, LanguageNames.CSharp);
 
+            BindToOption(Fade_out_unused_usings, FadingOptions.FadeOutUnusedImports, LanguageNames.CSharp);
+            BindToOption(Fade_out_unnecessary_casts, FadingOptions.FadeOutUnnecessaryCasts, LanguageNames.CSharp);
+            BindToOption(Fade_out_unreachable_code, FadingOptions.FadeOutUnreachableCode, LanguageNames.CSharp);
+            BindToOption(Fade_out_null_checks_that_can_be_simplified, FadingOptions.FadeOutNullChecksThatCanBeSimplified, LanguageNames.CSharp);
+            BindToOption(Fade_out_initializers_that_can_be_simplified, FadingOptions.FadeOutInitializersThatCanBeSimplified, LanguageNames.CSharp);
+            BindToOption(Fade_out_default_expressions_that_can_be_simplified, FadingOptions.FadeOutDefaultExpressionsThatCanBeSimplified, LanguageNames.CSharp);
+
             BindToOption(Show_guides_for_declaration_level_constructs, BlockStructureOptions.ShowBlockStructureGuidesForDeclarationLevelConstructs, LanguageNames.CSharp);
             BindToOption(Show_guides_for_code_level_constructs, BlockStructureOptions.ShowBlockStructureGuidesForCodeLevelConstructs, LanguageNames.CSharp);
 

src/VisualStudio/CSharp/Impl/Options/AdvancedOptionPageStrings.cs

@@ -134,6 +134,27 @@ public static string Option_Show_guides_for_declaration_level_constructs
         public static string Option_Show_guides_for_code_level_constructs
             => ServicesVSResources.Show_guides_for_code_level_constructs;
 
+        public static string Option_Fading
+            => ServicesVSResources.Fading;
+
+        public static string Option_Fade_out_unused_usings
+            => ServicesVSResources.Fade_out_unused_usings;
+
+        public static string Option_Fade_out_unnecessary_casts
+            => ServicesVSResources.Fade_out_unnecessary_casts;
+
+        public static string Option_Fade_out_unreachable_code
+            => ServicesVSResources.Fade_out_unreachable_code;
+
+        public static string Option_Fade_out_null_checks_that_can_be_simplified
+            => ServicesVSResources.Fade_out_null_checks_that_can_be_simplified;
+
+        public static string Option_Fade_out_initializers_that_can_be_simplified
+            => ServicesVSResources.Fade_out_initializers_that_can_be_simplified;
+
+        public static string Option_Fade_out_default_expressions_that_can_be_simplified
+            => ServicesVSResources.Fade_out_default_expressions_that_can_be_simplified;
+
         public static string Option_Performance
         {
             get { return CSharpVSResources.Performance; }

src/VisualStudio/Core/Def/ServicesVSResources.Designer.cs

@@ -777,6 +777,69 @@ internal class ServicesVSResources {
             }
         }
         
+        /// <summary>
+        ///   Looks up a localized string similar to Fade out &apos;defualt&apos; expressions that can be simplified.
+        /// </summary>
+        internal static string Fade_out_default_expressions_that_can_be_simplified {
+            get {
+                return ResourceManager.GetString("Fade_out_default_expressions_that_can_be_simplified", resourceCulture);
+            }
+        }
+        
+        /// <summary>
+        ///   Looks up a localized string similar to Fade out initializers that can be simplified.
+        /// </summary>
+        internal static string Fade_out_initializers_that_can_be_simplified {
+            get {
+                return ResourceManager.GetString("Fade_out_initializers_that_can_be_simplified", resourceCulture);
+            }
+        }
+        
+        /// <summary>
+        ///   Looks up a localized string similar to Fade out null checks that can be simplified.
+        /// </summary>
+        internal static string Fade_out_null_checks_that_can_be_simplified {
+            get {
+                return ResourceManager.GetString("Fade_out_null_checks_that_can_be_simplified", resourceCulture);
+            }
+        }
+        
+        /// <summary>
+        ///   Looks up a localized string similar to Fade out unnecessary casts.
+        /// </summary>
+        internal static string Fade_out_unnecessary_casts {
+            get {
+                return ResourceManager.GetString("Fade_out_unnecessary_casts", resourceCulture);
+            }
+        }
+        
+        /// <summary>
+        ///   Looks up a localized string similar to Fade out unreachable code.
+        /// </summary>
+        internal static string Fade_out_unreachable_code {
+            get {
+                return ResourceManager.GetString("Fade_out_unreachable_code", resourceCulture);
+            }
+        }
+        
+        /// <summary>
+        ///   Looks up a localized string similar to Fade out unused usings.
+        /// </summary>
+        internal static string Fade_out_unused_usings {
+            get {
+                return ResourceManager.GetString("Fade_out_unused_usings", resourceCulture);
+            }
+        }
+        
+        /// <summary>
+        ///   Looks up a localized string similar to Fading.
+        /// </summary>
+        internal static string Fading {
+            get {
+                return ResourceManager.GetString("Fading", resourceCulture);
+            }
+        }
+        
         /// <summary>
         ///   Looks up a localized string similar to Failed to create document in miscellaneous files project..
         /// </summary>

src/VisualStudio/Core/Def/ServicesVSResources.resx

@@ -933,4 +933,25 @@ Additional information: {1}</value>
   <data name="Perform_editor_feature_analysis_in_external_process" xml:space="preserve">
     <value>Perform editor _feature analysis in external process (experimental)</value>
   </data>
+  <data name="Fade_out_default_expressions_that_can_be_simplified" xml:space="preserve">
+    <value>Fade out 'defualt' expressions that can be simplified</value>
+  </data>
+  <data name="Fade_out_initializers_that_can_be_simplified" xml:space="preserve">
+    <value>Fade out initializers that can be simplified</value>
+  </data>
+  <data name="Fade_out_null_checks_that_can_be_simplified" xml:space="preserve">
+    <value>Fade out null checks that can be simplified</value>
+  </data>
+  <data name="Fade_out_unnecessary_casts" xml:space="preserve">
+    <value>Fade out unnecessary casts</value>
+  </data>
+  <data name="Fade_out_unreachable_code" xml:space="preserve">
+    <value>Fade out unreachable code</value>
+  </data>
+  <data name="Fade_out_unused_usings" xml:space="preserve">
+    <value>Fade out unused usings</value>
+  </data>
+  <data name="Fading" xml:space="preserve">
+    <value>Fading</value>
+  </data>
 </root>
\ No newline at end of file