Fix variable highlighting

ILSpy/Controls/ResourceObjectTable.xaml

@@ -13,8 +13,8 @@
 	<Grid Margin="5,0,0,0">
 		<Grid.Resources>
 			<AlternationConverter x:Key="BackgroundConverter">
-				<SolidColorBrush Color="White"></SolidColorBrush>
-				<SolidColorBrush Color="Beige"></SolidColorBrush>
+				<SolidColorBrush Color="Transparent" />
+				<SolidColorBrush Color="#CCCC33" Opacity="0.15" />
 			</AlternationConverter>
 			<Style x:Key="alternatingWithBinding"
 				   TargetType="{x:Type ListBoxItem}" BasedOn="{StaticResource {x:Type ListBoxItem}}">

ILSpy/ILSpy.csproj

@@ -218,6 +218,7 @@
     <Compile Include="Metadata\MetadataTableTreeNode.cs" />
     <Compile Include="Metadata\DebugMetadataTreeNode.cs" />
     <Compile Include="ThemeManager.cs" />
+    <Compile Include="themes\ResourceKeys.cs" />
     <Compile Include="TreeNodes\PackageFolderTreeNode.cs" />
     <Compile Include="ViewModels\LegacyToolPaneModel.cs" />
     <Compile Include="ViewModels\ManageAssemblyListsViewModel.cs" />

ILSpy/TextView/DecompilerTextView.cs

@@ -54,6 +54,7 @@ using ICSharpCode.Decompiler.Output;
 using ICSharpCode.Decompiler.TypeSystem;
 using ICSharpCode.ILSpy.AvalonEdit;
 using ICSharpCode.ILSpy.Options;
+using ICSharpCode.ILSpy.themes;
 using ICSharpCode.ILSpy.TreeNodes;
 using ICSharpCode.ILSpy.ViewModels;
 
@@ -460,14 +461,15 @@ namespace ICSharpCode.ILSpy.TextView
 				};
 				viewer.Document = document;
 				Border border = new Border {
-					Background = SystemColors.ControlBrush,
-					BorderBrush = SystemColors.ControlDarkBrush,
 					BorderThickness = new Thickness(1),
 					MaxHeight = 400,
 					Child = viewer
 				};
+				border.SetResourceReference(Border.BackgroundProperty, SystemColors.ControlBrushKey);
+				border.SetResourceReference(Border.BorderBrushProperty, SystemColors.ControlDarkBrushKey);
+
 				this.Child = border;
-				viewer.Foreground = SystemColors.InfoTextBrush;
+				viewer.SetResourceReference(ForegroundProperty, SystemColors.InfoTextBrushKey);
 				document.TextAlignment = TextAlignment.Left;
 				document.FontSize = fontSize;
 				document.FontFamily = SystemFonts.SmallCaptionFontFamily;
@@ -926,8 +928,9 @@ namespace ICSharpCode.ILSpy.TextView
 					{
 						if (reference.Equals(r.Reference))
 						{
+
 							var mark = textMarkerService.Create(r.StartOffset, r.Length);
-							mark.BackgroundColor = r.IsDefinition ? Colors.LightSeaGreen : Colors.GreenYellow;
+							mark.BackgroundColor = (Color)(r.IsDefinition ? FindResource(ResourceKeys.TextMarkerDefinitionBackgroundColor) : FindResource(ResourceKeys.TextMarkerBackgroundColor));
 							localReferenceMarks.Add(mark);
 						}
 					}

ILSpy/themes/DarkTheme.xaml

@@ -1,6 +1,7 @@
 <ResourceDictionary xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
                     xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
-                    xmlns:styles="urn:TomsToolbox.Wpf.Styles">
+                    xmlns:styles="urn:TomsToolbox.Wpf.Styles"
+                    xmlns:themes="clr-namespace:ICSharpCode.ILSpy.themes">
 	<ResourceDictionary.MergedDictionaries>
 		<ResourceDictionary Source="/AvalonDock.Themes.VS2013;component/darktheme.xaml" />
 	</ResourceDictionary.MergedDictionaries>
@@ -28,4 +29,7 @@
 	<SolidColorBrush x:Key="{x:Static SystemColors.InactiveCaptionTextBrushKey}" Color="#F1F1F1" />
 	<SolidColorBrush x:Key="{x:Static styles:ResourceKeys.BorderBrush}" Color="#3F3F46" />
 	<SolidColorBrush x:Key="{x:Static styles:ResourceKeys.DisabledBrush}" Color="#2D2D30" />
+
+	<Color x:Key="{x:Static themes:ResourceKeys.TextMarkerBackgroundColor}">MediumVioletRed</Color>
+
 </ResourceDictionary>

ILSpy/themes/ResourceKeys.cs

@@ -0,0 +1,10 @@
+using System.Windows;
+
+namespace ICSharpCode.ILSpy.themes
+{
+	public static class ResourceKeys
+	{
+		public static ResourceKey TextMarkerBackgroundColor = new ComponentResourceKey(typeof(ResourceKeys), "TextMarkerBackgroundColor");
+		public static ResourceKey TextMarkerDefinitionBackgroundColor = new ComponentResourceKey(typeof(ResourceKeys), "TextMarkerDefinitionBackgroundColor");
+	}
+}

ILSpy/themes/generic.xaml

@@ -1,7 +1,7 @@
 <ResourceDictionary xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
 	xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
 	xmlns:controls="clr-namespace:ICSharpCode.ILSpy.Controls"
->
+	xmlns:themes="clr-namespace:ICSharpCode.ILSpy.themes">
 	<ResourceDictionary.MergedDictionaries>
 		<ResourceDictionary Source="../Controls/SearchBoxStyle.xaml" />
 	</ResourceDictionary.MergedDictionaries>
@@ -26,4 +26,7 @@
 			      Data            = "M 5,5 L 10,10 L 15,5 L 5,5"/>
 		</StackPanel>
 	</DataTemplate>
+
+	<Color x:Key="{x:Static themes:ResourceKeys.TextMarkerBackgroundColor}">GreenYellow</Color>
+	<Color x:Key="{x:Static themes:ResourceKeys.TextMarkerDefinitionBackgroundColor}">LightSeaGreen</Color>
 </ResourceDictionary>

SharpTreeView/SharpTreeView.cs

@@ -669,8 +669,8 @@ namespace ICSharpCode.TreeView
 
 			if (place == DropPlace.Inside)
 			{
-				previewNodeView.TextBackground = SystemColors.HighlightBrush;
-				previewNodeView.Foreground = SystemColors.HighlightTextBrush;
+				previewNodeView.SetResourceReference(SharpTreeNodeView.TextBackgroundProperty, SystemColors.HighlightBrushKey);
+				previewNodeView.SetResourceReference(SharpTreeNodeView.ForegroundProperty, SystemColors.HighlightTextBrushKey);
 			}
 			else
 			{