diff --git a/src/AddIns/DisplayBindings/AvalonEdit.AddIn/Src/ExpressionHighlightRenderer.cs b/src/AddIns/DisplayBindings/AvalonEdit.AddIn/Src/ExpressionHighlightRenderer.cs
index 925d18ecfe..4c6d2768cf 100644
--- a/src/AddIns/DisplayBindings/AvalonEdit.AddIn/Src/ExpressionHighlightRenderer.cs
+++ b/src/AddIns/DisplayBindings/AvalonEdit.AddIn/Src/ExpressionHighlightRenderer.cs
@@ -22,8 +22,8 @@ namespace ICSharpCode.AvalonEdit.AddIn
 		Pen borderPen;
 		Brush backgroundBrush;
 		TextView textView;
-		readonly Color borderColor = Color.FromArgb(52, 30, 130, 255);	//Color.FromArgb(180, 70, 230, 70))
-		readonly Color fillColor = Color.FromArgb(22, 30, 130, 255); 	//Color.FromArgb(40, 60, 255, 60)
+		public readonly Color DefaultBorderColor = Color.FromArgb(52, 30, 130, 255);	//Color.FromArgb(180, 70, 230, 70))
+		public readonly Color DefaultFillColor = Color.FromArgb(22, 30, 130, 255); 	//Color.FromArgb(40, 60, 255, 60)
 		readonly int borderThickness = 1;
 		readonly int cornerRadius = 1;
 		
@@ -45,8 +45,8 @@ namespace ICSharpCode.AvalonEdit.AddIn
 			if (textView == null)
 				throw new ArgumentNullException("textView");
 			this.textView = textView;
-			this.borderPen = new Pen(new SolidColorBrush(borderColor), borderThickness);
-			this.backgroundBrush = new SolidColorBrush(fillColor);
+			this.borderPen = new Pen(new SolidColorBrush(DefaultBorderColor), borderThickness);
+			this.backgroundBrush = new SolidColorBrush(DefaultFillColor);
 			this.borderPen.Freeze();
 			this.backgroundBrush.Freeze();
 			this.textView.BackgroundRenderers.Add(this);
diff --git a/src/AddIns/DisplayBindings/AvalonEdit.AddIn/Src/Options/HighlightingOptions.xaml.cs b/src/AddIns/DisplayBindings/AvalonEdit.AddIn/Src/Options/HighlightingOptions.xaml.cs
index 5d5892aaf3..ccdffa66bf 100644
--- a/src/AddIns/DisplayBindings/AvalonEdit.AddIn/Src/Options/HighlightingOptions.xaml.cs
+++ b/src/AddIns/DisplayBindings/AvalonEdit.AddIn/Src/Options/HighlightingOptions.xaml.cs
@@ -171,7 +171,6 @@ namespace ICSharpCode.AvalonEdit.AddIn.Options
 					from name in typeof(HighlightingManager).Assembly.GetManifestResourceNames().AsParallel()
 					where name.StartsWith(typeof(HighlightingManager).Namespace + ".Resources.", StringComparison.OrdinalIgnoreCase)
 					&& name.EndsWith(".xshd", StringComparison.OrdinalIgnoreCase)
-					&& !name.EndsWith("XmlDoc.xshd", StringComparison.OrdinalIgnoreCase)
 					select LoadBuiltinXshd(name)
 				).Concat(
 					ICSharpCode.Core.AddInTree.BuildItems<AddInTreeSyntaxMode>(SyntaxModeDoozer.Path, null, false).AsParallel()
@@ -187,7 +186,7 @@ namespace ICSharpCode.AvalonEdit.AddIn.Options
 			
 			languageComboBox.Items.Clear();
 			languageComboBox.Items.Add(new XshdSyntaxDefinition { Name = "All languages" });
-			foreach (XshdSyntaxDefinition def in allSyntaxDefinitions)
+			foreach (XshdSyntaxDefinition def in allSyntaxDefinitions.Where(d => !d.Name.Equals("XmlDoc", StringComparison.OrdinalIgnoreCase)))
 				languageComboBox.Items.Add(def);
 			if (allSyntaxDefinitions.Count > 0)
 				languageComboBox.SelectedIndex = 0;
@@ -210,7 +209,9 @@ namespace ICSharpCode.AvalonEdit.AddIn.Options
 					if (def == null) {
 						throw new InvalidOperationException("Expected that all XSHDs are registered in default highlighting manager; but highlighting definition was not found");
 					} else {
-						foreach (XshdColor namedColor in xshd.Elements.OfType<XshdColor>()) {
+						var visitor = new ColorVisitor(allSyntaxDefinitions);
+						xshd.AcceptElements(visitor);
+						foreach (XshdColor namedColor in visitor.foundColors) {
 							if (namedColor.ExampleText != null) {
 								IHighlightingItem item = new NamedColorHighlightingItem(defaultText, namedColor) { ParentDefinition = def };
 								item = new CustomizedHighlightingItem(customizationList, item, xshd.Name);
@@ -225,6 +226,60 @@ namespace ICSharpCode.AvalonEdit.AddIn.Options
 			}
 		}
 		
+		class ColorVisitor : IXshdVisitor
+		{
+			internal readonly List<XshdColor> foundColors = new List<XshdColor>();
+			readonly HashSet<XshdSyntaxDefinition> visitedDefinitons = new HashSet<XshdSyntaxDefinition>();
+			IList<XshdSyntaxDefinition> allSyntaxDefinitions;
+			
+			public ColorVisitor(IList<XshdSyntaxDefinition> allSyntaxDefinitions)
+			{
+				this.allSyntaxDefinitions = allSyntaxDefinitions;
+			}
+			
+			public object VisitRuleSet(XshdRuleSet ruleSet)
+			{
+				ruleSet.AcceptElements(this);
+				return null;
+			}
+			
+			public object VisitColor(XshdColor color)
+			{
+				foundColors.Add(color);
+				return null;
+			}
+			
+			public object VisitKeywords(XshdKeywords keywords)
+			{
+				return keywords.ColorReference.AcceptVisitor(this);
+			}
+			
+			public object VisitSpan(XshdSpan span)
+			{
+				if (span.RuleSetReference.InlineElement != null)
+					return span.RuleSetReference.AcceptVisitor(this);
+				XshdSyntaxDefinition definition = allSyntaxDefinitions.SingleOrDefault(def => def.Name == span.RuleSetReference.ReferencedDefinition);
+				if (definition != null && visitedDefinitons.Add(definition))
+					foundColors.AddRange(definition.Elements.OfType<XshdColor>());
+				return null;
+			}
+			
+			public object VisitImport(XshdImport import)
+			{
+				if (import.RuleSetReference.InlineElement != null)
+					return import.RuleSetReference.AcceptVisitor(this);
+				XshdSyntaxDefinition definition = allSyntaxDefinitions.SingleOrDefault(def => def.Name == import.RuleSetReference.ReferencedDefinition);
+				if (definition != null && visitedDefinitons.Add(definition))
+					foundColors.AddRange(definition.Elements.OfType<XshdColor>());
+				return null;
+			}
+			
+			public object VisitRule(XshdRule rule)
+			{
+				return rule.ColorReference.AcceptVisitor(this);
+			}
+		}
+		
 		void CreateDefaultEntries(string language, out IHighlightingItem defaultText, IList<IHighlightingItem> items)
 		{
 			// Create entry for "default text/background"
@@ -597,16 +652,15 @@ namespace ICSharpCode.AvalonEdit.AddIn.Options
 		static readonly MultiDictionary<string, string> mapping = new MultiDictionary<string, string>(StringComparer.Ordinal) {
 			{ "Brace Matching (Rectangle)", BracketHighlightRenderer.BracketHighlight },
 			{ "Collapsible Text", FoldingTextMarkers },
-			{ "Comment", "XML.Comment" },
 			{ "Comment", "VBNET.Comment" },
 			{ "Comment", "C#.Comment" },
 			{ "Compiler Error", ErrorPainter.ErrorColorName },
 			{ "CSS Comment", "CSS.Comment" },
 			{ "CSS Keyword", "" },
-			{ "CSS Property Name", "" },
-			{ "CSS Property Value", "" },
-			{ "CSS Selector", "" },
-			{ "CSS String Value", "" },
+			{ "CSS Property Name", "CSS.Property" },
+			{ "CSS Property Value", "CSS.Value" },
+			{ "CSS Selector", "CSS.Selector" },
+			{ "CSS String Value", "CSS.String" },
 			{ "Excluded Code", "" },
 			{ "HTML Attribute Value", "" },
 			{ "HTML Attribute", "" },
@@ -687,10 +741,10 @@ namespace ICSharpCode.AvalonEdit.AddIn.Options
 			{ "XAML Name", "" },
 			{ "XAML Text", "" },
 			{ "XML Attribute Quotes", "" },
-			{ "XML Attribute Value", "XML." },
-			{ "XML Attribute", "" },
-			{ "XML CData Section", "" },
-			{ "XML Comment", "" },
+			{ "XML Attribute Value", "XML.AttributeValue" },
+			{ "XML Attribute", "XML.AttributeName" },
+			{ "XML CData Section", "XML.CData" },
+			{ "XML Comment", "XML.Comment" },
 			{ "XML Delimiter", "" },
 			{ "XML Doc Comment", "" },
 			{ "XML Doc Tag", "" },
diff --git a/src/AddIns/DisplayBindings/AvalonEdit.AddIn/Src/Options/NamedColorHighlightingItem.cs b/src/AddIns/DisplayBindings/AvalonEdit.AddIn/Src/Options/NamedColorHighlightingItem.cs
index 5ecfa112c0..75890d92b2 100644
--- a/src/AddIns/DisplayBindings/AvalonEdit.AddIn/Src/Options/NamedColorHighlightingItem.cs
+++ b/src/AddIns/DisplayBindings/AvalonEdit.AddIn/Src/Options/NamedColorHighlightingItem.cs
@@ -2,13 +2,15 @@
 // This code is distributed under the GNU LGPL (for details please see \doc\license.txt)
 
 using System;
+using System.Collections.Generic;
 using System.ComponentModel;
+using System.Linq;
 using System.Windows;
 using System.Windows.Media;
-
 using ICSharpCode.AvalonEdit.Editing;
 using ICSharpCode.AvalonEdit.Highlighting;
 using ICSharpCode.AvalonEdit.Highlighting.Xshd;
+using ICSharpCode.Core;
 
 namespace ICSharpCode.AvalonEdit.AddIn.Options
 {
@@ -127,7 +129,16 @@ namespace ICSharpCode.AvalonEdit.AddIn.Options
 		
 		public void ShowExample(TextArea exampleTextArea)
 		{
-			exampleTextArea.Document.Text = color.ExampleText;
+			exampleTextArea.Document.Text = StringParser.Parse(color.ExampleText, GetXshdProperties().ToArray());
+		}
+		
+		IEnumerable<StringTagPair> GetXshdProperties()
+		{
+			IHighlightingDefinition2 def = ParentDefinition as IHighlightingDefinition2;
+			if (def == null)
+				yield break;
+			foreach (var p in def.Properties)
+				yield return new StringTagPair(p.Key, p.Value);
 		}
 		
 		event System.ComponentModel.PropertyChangedEventHandler INotifyPropertyChanged.PropertyChanged { add {} remove {} }
diff --git a/src/Libraries/AvalonEdit/ICSharpCode.AvalonEdit/Highlighting/HighlightingManager.cs b/src/Libraries/AvalonEdit/ICSharpCode.AvalonEdit/Highlighting/HighlightingManager.cs
index 8c86206007..c38a71295a 100644
--- a/src/Libraries/AvalonEdit/ICSharpCode.AvalonEdit/Highlighting/HighlightingManager.cs
+++ b/src/Libraries/AvalonEdit/ICSharpCode.AvalonEdit/Highlighting/HighlightingManager.cs
@@ -20,7 +20,7 @@ namespace ICSharpCode.AvalonEdit.Highlighting
 	/// </remarks>
 	public class HighlightingManager : IHighlightingDefinitionReferenceResolver
 	{
-		sealed class DelayLoadedHighlightingDefinition : IHighlightingDefinition
+		sealed class DelayLoadedHighlightingDefinition : IHighlightingDefinition2
 		{
 			readonly object lockObj = new object();
 			readonly string name;
@@ -104,6 +104,15 @@ namespace ICSharpCode.AvalonEdit.Highlighting
 			{
 				return this.Name;
 			}
+			
+			public IDictionary<string, string> Properties {
+				get {
+					var def = GetDefinition() as IHighlightingDefinition2;
+					if (def != null)
+						return def.Properties;
+					return null;
+				}
+			}
 		}
 		
 		readonly object lockObj = new object();
diff --git a/src/Libraries/AvalonEdit/ICSharpCode.AvalonEdit/Highlighting/IHighlightingDefinition.cs b/src/Libraries/AvalonEdit/ICSharpCode.AvalonEdit/Highlighting/IHighlightingDefinition.cs
index 03eb631b58..7489fb8188 100644
--- a/src/Libraries/AvalonEdit/ICSharpCode.AvalonEdit/Highlighting/IHighlightingDefinition.cs
+++ b/src/Libraries/AvalonEdit/ICSharpCode.AvalonEdit/Highlighting/IHighlightingDefinition.cs
@@ -40,4 +40,15 @@ namespace ICSharpCode.AvalonEdit.Highlighting
 		/// </summary>
 		IEnumerable<HighlightingColor> NamedHighlightingColors { get; }
 	}
+	
+	/// <summary>
+	/// Extension of IHighlightingDefinition to avoid breaking changes in the API.
+	/// </summary>
+	public interface IHighlightingDefinition2 : IHighlightingDefinition
+	{
+		/// <summary>
+		/// Gets the list of properties.
+		/// </summary>
+		IDictionary<string, string> Properties { get; }
+	}
 }
diff --git a/src/Libraries/AvalonEdit/ICSharpCode.AvalonEdit/Highlighting/Resources/CSharp-Mode.xshd b/src/Libraries/AvalonEdit/ICSharpCode.AvalonEdit/Highlighting/Resources/CSharp-Mode.xshd
index 5c56d04118..cea3101957 100644
--- a/src/Libraries/AvalonEdit/ICSharpCode.AvalonEdit/Highlighting/Resources/CSharp-Mode.xshd
+++ b/src/Libraries/AvalonEdit/ICSharpCode.AvalonEdit/Highlighting/Resources/CSharp-Mode.xshd
@@ -27,6 +27,8 @@
 	<Color name="TrueFalse" fontWeight="bold" foreground="DarkCyan" exampleText="b = false; a = true;" />
 	<Color name="TypeKeywords" fontWeight="bold" foreground="DarkCyan" exampleText="if (x is int) { a = x as int; type = typeof(int); size = sizeof(int); c = new object(); }"/>
 	
+	<Property name="DocCommentMarker" value="///" />
+	
 	<RuleSet name="CommentMarkerSet">
 		<Keywords fontWeight="bold" foreground="Red">
 			<Word>TODO</Word>
diff --git a/src/Libraries/AvalonEdit/ICSharpCode.AvalonEdit/Highlighting/Resources/ModeV2.xsd b/src/Libraries/AvalonEdit/ICSharpCode.AvalonEdit/Highlighting/Resources/ModeV2.xsd
index f4f9fce1ea..53cd376e26 100644
--- a/src/Libraries/AvalonEdit/ICSharpCode.AvalonEdit/Highlighting/Resources/ModeV2.xsd
+++ b/src/Libraries/AvalonEdit/ICSharpCode.AvalonEdit/Highlighting/Resources/ModeV2.xsd
@@ -50,6 +50,13 @@
 		</xsd:complexType>
 	</xsd:element>
 	
+	<xsd:element name="Property">
+		<xsd:complexType>
+			<xsd:attribute name="name" type="xsd:string" use="required" />
+			<xsd:attribute name="value" type="xsd:string" use="required" />
+		</xsd:complexType>
+	</xsd:element>
+	
 	<!-- Regular expression -->
 	<xsd:simpleType name="regex">
 		<xsd:restriction base="xsd:string"/>
@@ -135,6 +142,7 @@
 	<xsd:element name="SyntaxDefinition">
 		<xsd:complexType>
 			<xsd:choice minOccurs="1" maxOccurs="unbounded">
+				<xsd:element ref="Property"/>
 				<xsd:element ref="Color"/>
 				<xsd:element ref="RuleSet"/>
 			</xsd:choice>
diff --git a/src/Libraries/AvalonEdit/ICSharpCode.AvalonEdit/Highlighting/Resources/VBNET-Mode.xshd b/src/Libraries/AvalonEdit/ICSharpCode.AvalonEdit/Highlighting/Resources/VBNET-Mode.xshd
index 3487615593..b22555a29e 100644
--- a/src/Libraries/AvalonEdit/ICSharpCode.AvalonEdit/Highlighting/Resources/VBNET-Mode.xshd
+++ b/src/Libraries/AvalonEdit/ICSharpCode.AvalonEdit/Highlighting/Resources/VBNET-Mode.xshd
@@ -18,6 +18,8 @@
 	<Color name="FunctionKeywords" foreground="Blue" exampleText="CInt(a)" />
 	<Color name="ContextKeywords" foreground="Blue" exampleText="Declare Unicode Sub SomeMethod" />
 	
+	<Property name="DocCommentMarker" value="'''" />
+	
 	<RuleSet ignoreCase="true">
 		<Span color="String">
 			<Begin>"</Begin>
diff --git a/src/Libraries/AvalonEdit/ICSharpCode.AvalonEdit/Highlighting/Resources/XmlDoc.xshd b/src/Libraries/AvalonEdit/ICSharpCode.AvalonEdit/Highlighting/Resources/XmlDoc.xshd
index 0b76b92a49..e4303de6af 100644
--- a/src/Libraries/AvalonEdit/ICSharpCode.AvalonEdit/Highlighting/Resources/XmlDoc.xshd
+++ b/src/Libraries/AvalonEdit/ICSharpCode.AvalonEdit/Highlighting/Resources/XmlDoc.xshd
@@ -1,9 +1,9 @@
 <?xml version="1.0"?>
 <SyntaxDefinition name="XmlDoc" xmlns="http://icsharpcode.net/sharpdevelop/syntaxdefinition/2008">
-	<Color name="XmlString" foreground="Silver" fontWeight="bold" />
-	<Color name="DocComment" foreground="Gray" />
-	<Color name="XmlPunctuation" fontWeight="bold" />
-	<Color name="KnownDocTags" fontWeight="bold" />
+	<Color name="XmlString" foreground="Silver" fontWeight="bold" exampleText="${DocCommentMarker} &lt;exception cref=&quot;System.Exception&quot; /&gt;" />
+	<Color name="DocComment" foreground="Gray" exampleText="${DocCommentMarker} &lt;exception cref=&quot;System.Exception&quot; /&gt;" />
+	<Color name="XmlPunctuation" fontWeight="bold" exampleText="${DocCommentMarker} &lt;exception cref=&quot;System.Exception&quot; /&gt;" />
+	<Color name="KnownDocTags" fontWeight="bold" exampleText="${DocCommentMarker} &lt;exception cref=&quot;System.Exception&quot; /&gt;" />
 	
 	<RuleSet name="DocCommentSet">
 		<Span color="DocComment">
diff --git a/src/Libraries/AvalonEdit/ICSharpCode.AvalonEdit/Highlighting/Xshd/V2Loader.cs b/src/Libraries/AvalonEdit/ICSharpCode.AvalonEdit/Highlighting/Xshd/V2Loader.cs
index b13c1417b5..93519ae958 100644
--- a/src/Libraries/AvalonEdit/ICSharpCode.AvalonEdit/Highlighting/Xshd/V2Loader.cs
+++ b/src/Libraries/AvalonEdit/ICSharpCode.AvalonEdit/Highlighting/Xshd/V2Loader.cs
@@ -64,6 +64,9 @@ namespace ICSharpCode.AvalonEdit.Highlighting.Xshd
 					case "RuleSet":
 						c.Add(ParseRuleSet(reader));
 						break;
+					case "Property":
+						c.Add(ParseProperty(reader));
+						break;
 					case "Color":
 						c.Add(ParseNamedColor(reader));
 						break;
@@ -85,6 +88,15 @@ namespace ICSharpCode.AvalonEdit.Highlighting.Xshd
 			}
 		}
 		
+		static XshdElement ParseProperty(XmlReader reader)
+		{
+			XshdProperty property = new XshdProperty();
+			SetPosition(property, reader);
+			property.Name = reader.GetAttribute("name");
+			property.Value = reader.GetAttribute("value");
+			return property;
+		}
+		
 		static XshdRuleSet ParseRuleSet(XmlReader reader)
 		{
 			XshdRuleSet ruleSet = new XshdRuleSet();
diff --git a/src/Libraries/AvalonEdit/ICSharpCode.AvalonEdit/Highlighting/Xshd/XmlHighlightingDefinition.cs b/src/Libraries/AvalonEdit/ICSharpCode.AvalonEdit/Highlighting/Xshd/XmlHighlightingDefinition.cs
index d8bae25056..c5a15cf1e7 100644
--- a/src/Libraries/AvalonEdit/ICSharpCode.AvalonEdit/Highlighting/Xshd/XmlHighlightingDefinition.cs
+++ b/src/Libraries/AvalonEdit/ICSharpCode.AvalonEdit/Highlighting/Xshd/XmlHighlightingDefinition.cs
@@ -5,15 +5,15 @@ using System;
 using System.Collections.Generic;
 using System.Diagnostics;
 using System.Linq;
+using System.Runtime.Serialization;
 using System.Text;
 using System.Text.RegularExpressions;
-
 using ICSharpCode.AvalonEdit.Utils;
 
 namespace ICSharpCode.AvalonEdit.Highlighting.Xshd
 {
 	[Serializable]
-	sealed class XmlHighlightingDefinition : IHighlightingDefinition
+	sealed class XmlHighlightingDefinition : IHighlightingDefinition2
 	{
 		public string Name { get; private set; }
 		
@@ -37,6 +37,9 @@ namespace ICSharpCode.AvalonEdit.Highlighting.Xshd
 				throw new HighlightingDefinitionInvalidException("Could not find main RuleSet.");
 			// Translate elements within the rulesets (resolving references and processing imports)
 			xshd.AcceptElements(new TranslateElementVisitor(this, rnev.ruleSets, resolver));
+			
+			foreach (var p in xshd.Elements.OfType<XshdProperty>())
+				propDict.Add(p.Name, p.Value);
 		}
 		
 		#region RegisterNamedElements
@@ -358,6 +361,8 @@ namespace ICSharpCode.AvalonEdit.Highlighting.Xshd
 		
 		Dictionary<string, HighlightingRuleSet> ruleSetDict = new Dictionary<string, HighlightingRuleSet>();
 		Dictionary<string, HighlightingColor> colorDict = new Dictionary<string, HighlightingColor>();
+		[OptionalField]
+		Dictionary<string, string> propDict = new Dictionary<string, string>();
 		
 		public HighlightingRuleSet MainRuleSet { get; private set; }
 		
@@ -391,5 +396,11 @@ namespace ICSharpCode.AvalonEdit.Highlighting.Xshd
 		{
 			return this.Name;
 		}
+		
+		public IDictionary<string, string> Properties {
+			get {
+				return propDict;
+			}
+		}
 	}
 }
diff --git a/src/Libraries/AvalonEdit/ICSharpCode.AvalonEdit/Highlighting/Xshd/XshdProperty.cs b/src/Libraries/AvalonEdit/ICSharpCode.AvalonEdit/Highlighting/Xshd/XshdProperty.cs
new file mode 100644
index 0000000000..eb5f2c3ee4
--- /dev/null
+++ b/src/Libraries/AvalonEdit/ICSharpCode.AvalonEdit/Highlighting/Xshd/XshdProperty.cs
@@ -0,0 +1,38 @@
+// Copyright (c) AlphaSierraPapa for the SharpDevelop Team (for details please see \doc\copyright.txt)
+// This code is distributed under the GNU LGPL (for details please see \doc\license.txt)
+
+using System;
+
+namespace ICSharpCode.AvalonEdit.Highlighting.Xshd
+{
+	/// <summary>
+	/// A property in an Xshd file.
+	/// </summary>
+	[Serializable]
+	public class XshdProperty : XshdElement
+	{
+		/// <summary>
+		/// Gets/sets the name.
+		/// </summary>
+		public string Name { get; set; }
+		
+		/// <summary>
+		/// Gets/sets the value.
+		/// </summary>
+		public string Value { get; set; }
+		
+		/// <summary>
+		/// Creates a new XshdColor instance.
+		/// </summary>
+		public XshdProperty()
+		{
+		}
+		
+		/// <inheritdoc/>
+		public override object AcceptVisitor(IXshdVisitor visitor)
+		{
+			return null;
+//			return visitor.VisitProperty(this);
+		}
+	}
+}
diff --git a/src/Libraries/AvalonEdit/ICSharpCode.AvalonEdit/ICSharpCode.AvalonEdit.csproj b/src/Libraries/AvalonEdit/ICSharpCode.AvalonEdit/ICSharpCode.AvalonEdit.csproj
index 4b76eeda25..3c8bdf8d74 100644
--- a/src/Libraries/AvalonEdit/ICSharpCode.AvalonEdit/ICSharpCode.AvalonEdit.csproj
+++ b/src/Libraries/AvalonEdit/ICSharpCode.AvalonEdit/ICSharpCode.AvalonEdit.csproj
@@ -212,6 +212,7 @@
     <Compile Include="Highlighting\Xshd\XmlHighlightingDefinition.cs" />
     <Compile Include="Highlighting\Xshd\XshdColor.cs" />
     <Compile Include="Highlighting\Xshd\XshdImport.cs" />
+    <Compile Include="Highlighting\Xshd\XshdProperty.cs" />
     <Compile Include="Highlighting\Xshd\XshdReference.cs" />
     <Compile Include="Highlighting\Xshd\XshdElement.cs" />
     <Compile Include="Highlighting\Xshd\XshdKeywords.cs" />