diff --git a/ILSpy.BamlDecompiler.Tests/BamlTestRunner.cs b/ILSpy.BamlDecompiler.Tests/BamlTestRunner.cs
index be9039601..b5cb07263 100644
--- a/ILSpy.BamlDecompiler.Tests/BamlTestRunner.cs
+++ b/ILSpy.BamlDecompiler.Tests/BamlTestRunner.cs
@@ -107,6 +107,12 @@ namespace ILSpy.BamlDecompiler.Tests
 			RunTest("cases/issue1435");
 		}
 
+		[Test]
+		public void Issue1546()
+		{
+			RunTest("cases/issue1546");
+		}
+
 		#region RunTest
 		void RunTest(string name)
 		{
diff --git a/ILSpy.BamlDecompiler.Tests/Cases/Issue1546.xaml b/ILSpy.BamlDecompiler.Tests/Cases/Issue1546.xaml
new file mode 100644
index 000000000..c09ce5b77
--- /dev/null
+++ b/ILSpy.BamlDecompiler.Tests/Cases/Issue1546.xaml
@@ -0,0 +1,35 @@
+<ResourceDictionary xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation" xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml" xmlns:PresentationOptions="http://schemas.microsoft.com/winfx/2006/xaml/presentation/options" xmlns:mc="http://schemas.openxmlformats.org/markup-compatibility/2006" xmlns:System="clr-namespace:System;assembly=mscorlib">
+	<SolidColorBrush x:Key="brushText">#f1f1f1</SolidColorBrush>
+	<SolidColorBrush x:Key="brushNormal">#2d2d30</SolidColorBrush>
+	<SolidColorBrush x:Key="brushFocused">#3f3f41</SolidColorBrush>
+	<SolidColorBrush x:Key="brushHighlight">#007acc</SolidColorBrush>
+	<SolidColorBrush x:Key="brushControlBackground">#333337</SolidColorBrush>
+	<SolidColorBrush x:Key="brushControlInactiveBorder">#3f3f3f</SolidColorBrush>
+	<SolidColorBrush x:Key="brushControlInactiveText">#999999</SolidColorBrush>
+	<SolidColorBrush x:Key="brushControlActive">#686868</SolidColorBrush>
+	<SolidColorBrush x:Key="brushControlActiveBorder">#9e9e9e</SolidColorBrush>
+	<Color x:Key="colorText">#f1f1f1</Color>
+	<Color x:Key="colorNormal">#2d2d30</Color>
+	<Color x:Key="colorFocused">#3f3f41</Color>
+	<Color x:Key="colorRED">#b20000</Color>
+	<Color x:Key="colorRED2">#990000</Color>
+	<Color x:Key="colorGREEN">#009700</Color>
+	<Color x:Key="colorGREEN2">#007400</Color>
+	<Color x:Key="colorHover">#1c97ea</Color>
+	<Color x:Key="colorHighlight">#007acc</Color>
+	<Color x:Key="colorControlBackground">#333337</Color>
+	<Color x:Key="colorControlInactiveBorder">#3f3f3f</Color>
+	<Color x:Key="colorControlInactiveText">#999999</Color>
+	<Color x:Key="colorControlActive">#686868</Color>
+	<Color x:Key="colorControlActiveBorder">#9e9e9e</Color>
+	<SolidColorBrush x:Key="ComboBoxNormalBorderBrush" Color="#e3e9ef" />
+	<SolidColorBrush x:Key="ComboBoxNormalBackgroundBrush" Color="#fff" />
+	<SolidColorBrush x:Key="ComboBoxDisabledForegroundBrush" Color="#888" />
+	<SolidColorBrush x:Key="ComboBoxDisabledBackgroundBrush" Color="#eee" />
+	<SolidColorBrush x:Key="ComboBoxDisabledBorderBrush" Color="#888" />
+	<Color x:Key="GrayLightExColorKey">#FFD1D1D1</Color>
+	<SolidColorBrush x:Key="GrayLightExColorSolidKey" PresentationOptions:Freeze="true" Color="{StaticResource GrayLightExColorKey}" />
+	<Color x:Key="GrayLightColorKey">#FFA3A3A3</Color>
+	<SolidColorBrush x:Key="GrayLightColorSolidKey" PresentationOptions:Freeze="true" Color="{StaticResource GrayLightColorKey}" />
+	<Color x:Key="GrayColorKey">#FF747474</Color>
+</ResourceDictionary>
\ No newline at end of file
diff --git a/ILSpy.BamlDecompiler.Tests/ILSpy.BamlDecompiler.Tests.csproj b/ILSpy.BamlDecompiler.Tests/ILSpy.BamlDecompiler.Tests.csproj
index 198bbe621..5971fd32c 100644
--- a/ILSpy.BamlDecompiler.Tests/ILSpy.BamlDecompiler.Tests.csproj
+++ b/ILSpy.BamlDecompiler.Tests/ILSpy.BamlDecompiler.Tests.csproj
@@ -74,6 +74,9 @@
     <Page Include="Cases\Issue1435.xaml">
       <Generator>MSBuild:Compile</Generator>
     </Page>
+    <Page Include="Cases\Issue1546.xaml">
+      <Generator>MSBuild:Compile</Generator>
+    </Page>
     <Page Include="Cases\Issue775.xaml">
       <SubType>Designer</SubType>
     </Page>
diff --git a/ILSpy.BamlDecompiler/Handlers/Blocks/KeyElementStartHandler.cs b/ILSpy.BamlDecompiler/Handlers/Blocks/KeyElementStartHandler.cs
index 12d0c22fe..f5844bd41 100644
--- a/ILSpy.BamlDecompiler/Handlers/Blocks/KeyElementStartHandler.cs
+++ b/ILSpy.BamlDecompiler/Handlers/Blocks/KeyElementStartHandler.cs
@@ -38,7 +38,7 @@ namespace ILSpy.BamlDecompiler.Handlers {
 			var key = (XamlResourceKey)node.Annotation;
 
 			var bamlElem = new BamlElement(node);
-			bamlElem.Xaml = new XElement(ctx.GetXamlNsName("Key", parent.Xaml));
+			bamlElem.Xaml = new XElement(ctx.GetKnownNamespace("Key", XamlContext.KnownNamespace_Xaml, parent.Xaml));
 			parent.Xaml.Element.Add(bamlElem.Xaml.Element);
 			key.KeyElement = bamlElem;
 			base.Translate(ctx, node, bamlElem);
diff --git a/ILSpy.BamlDecompiler/Handlers/Records/ConstructorParameterTypeHandler.cs b/ILSpy.BamlDecompiler/Handlers/Records/ConstructorParameterTypeHandler.cs
index 7bc103727..278586687 100644
--- a/ILSpy.BamlDecompiler/Handlers/Records/ConstructorParameterTypeHandler.cs
+++ b/ILSpy.BamlDecompiler/Handlers/Records/ConstructorParameterTypeHandler.cs
@@ -31,7 +31,7 @@ namespace ILSpy.BamlDecompiler.Handlers {
 		public BamlElement Translate(XamlContext ctx, BamlNode node, BamlElement parent) {
 			var record = (ConstructorParameterTypeRecord)((BamlRecordNode)node).Record;
 
-			var elem = new XElement(ctx.GetXamlNsName("TypeExtension", parent.Xaml));
+			var elem = new XElement(ctx.GetKnownNamespace("TypeExtension", XamlContext.KnownNamespace_Xaml, parent.Xaml));
 			elem.AddAnnotation(ctx.ResolveType(0xfd4d)); // Known type - TypeExtension
 
 			var bamlElem = new BamlElement(node);
diff --git a/ILSpy.BamlDecompiler/Handlers/Records/DefAttributeHandler.cs b/ILSpy.BamlDecompiler/Handlers/Records/DefAttributeHandler.cs
index 221c29aa3..8b141d002 100644
--- a/ILSpy.BamlDecompiler/Handlers/Records/DefAttributeHandler.cs
+++ b/ILSpy.BamlDecompiler/Handlers/Records/DefAttributeHandler.cs
@@ -31,7 +31,7 @@ namespace ILSpy.BamlDecompiler.Handlers {
 			var record = (DefAttributeRecord)((BamlRecordNode)node).Record;
 
 			var attrName = ctx.ResolveString(record.NameId);
-			parent.Xaml.Element.Add(new XAttribute(ctx.GetXamlNsName(attrName), record.Value));
+			parent.Xaml.Element.Add(new XAttribute(ctx.GetKnownNamespace(attrName, XamlContext.KnownNamespace_Xaml), record.Value));
 
 			return null;
 		}
diff --git a/ILSpy.BamlDecompiler/Handlers/Records/DefAttributeKeyStringHandler.cs b/ILSpy.BamlDecompiler/Handlers/Records/DefAttributeKeyStringHandler.cs
index b92a5588a..0068ba4ac 100644
--- a/ILSpy.BamlDecompiler/Handlers/Records/DefAttributeKeyStringHandler.cs
+++ b/ILSpy.BamlDecompiler/Handlers/Records/DefAttributeKeyStringHandler.cs
@@ -38,7 +38,7 @@ namespace ILSpy.BamlDecompiler.Handlers {
 			var key = (XamlResourceKey)node.Annotation;
 
 			var bamlElem = new BamlElement(node);
-			bamlElem.Xaml = new XElement(ctx.GetXamlNsName("Key", parent.Xaml));
+			bamlElem.Xaml = new XElement(ctx.GetKnownNamespace("Key", XamlContext.KnownNamespace_Xaml, parent.Xaml));
 			parent.Xaml.Element.Add(bamlElem.Xaml.Element);
 			bamlElem.Xaml.Element.Value = ctx.ResolveString(record.ValueId);
 			key.KeyElement = bamlElem;
diff --git a/ILSpy.BamlDecompiler/Handlers/Records/DefAttributeKeyTypeHandler.cs b/ILSpy.BamlDecompiler/Handlers/Records/DefAttributeKeyTypeHandler.cs
index 0b45d8583..8b6080248 100644
--- a/ILSpy.BamlDecompiler/Handlers/Records/DefAttributeKeyTypeHandler.cs
+++ b/ILSpy.BamlDecompiler/Handlers/Records/DefAttributeKeyTypeHandler.cs
@@ -40,10 +40,10 @@ namespace ILSpy.BamlDecompiler.Handlers {
 			var key = (XamlResourceKey)node.Annotation;
 
 			var bamlElem = new BamlElement(node);
-			bamlElem.Xaml = new XElement(ctx.GetXamlNsName("Key", parent.Xaml));
+			bamlElem.Xaml = new XElement(ctx.GetKnownNamespace("Key", XamlContext.KnownNamespace_Xaml, parent.Xaml));
 			parent.Xaml.Element.Add(bamlElem.Xaml.Element);
 
-			var typeElem = new XElement(ctx.GetXamlNsName("TypeExtension", parent.Xaml));
+			var typeElem = new XElement(ctx.GetKnownNamespace("TypeExtension", XamlContext.KnownNamespace_Xaml, parent.Xaml));
 			typeElem.AddAnnotation(ctx.ResolveType(0xfd4d)); // Known type - TypeExtension
 			typeElem.Add(new XElement(ctx.GetPseudoName("Ctor"), typeName));
 			bamlElem.Xaml.Element.Add(typeElem);
diff --git a/ILSpy.BamlDecompiler/Handlers/Records/LiteralContentHandler.cs b/ILSpy.BamlDecompiler/Handlers/Records/LiteralContentHandler.cs
index d5b0e73aa..ab36554b4 100644
--- a/ILSpy.BamlDecompiler/Handlers/Records/LiteralContentHandler.cs
+++ b/ILSpy.BamlDecompiler/Handlers/Records/LiteralContentHandler.cs
@@ -30,7 +30,7 @@ namespace ILSpy.BamlDecompiler.Handlers {
 		public BamlElement Translate(XamlContext ctx, BamlNode node, BamlElement parent) {
 			var record = (LiteralContentRecord)((BamlRecordNode)node).Record;
 
-			var elem = new XElement(ctx.GetXamlNsName("XData", parent.Xaml));
+			var elem = new XElement(ctx.GetKnownNamespace("XData", XamlContext.KnownNamespace_Xaml, parent.Xaml));
 			var content = XElement.Parse(record.Value);
 			elem.Add(content);
 
diff --git a/ILSpy.BamlDecompiler/Handlers/Records/OptimizedStaticResourceHandler.cs b/ILSpy.BamlDecompiler/Handlers/Records/OptimizedStaticResourceHandler.cs
index 64a54695b..463acedc2 100644
--- a/ILSpy.BamlDecompiler/Handlers/Records/OptimizedStaticResourceHandler.cs
+++ b/ILSpy.BamlDecompiler/Handlers/Records/OptimizedStaticResourceHandler.cs
@@ -43,7 +43,7 @@ namespace ILSpy.BamlDecompiler.Handlers {
 			if (record.IsType) {
 				var value = ctx.ResolveType(record.ValueId);
 
-				var typeElem = new XElement(ctx.GetXamlNsName("TypeExtension", parent.Xaml));
+				var typeElem = new XElement(ctx.GetKnownNamespace("TypeExtension", XamlContext.KnownNamespace_Xaml, parent.Xaml));
 				typeElem.AddAnnotation(ctx.ResolveType(0xfd4d)); // Known type - TypeExtension
 				typeElem.Add(new XElement(ctx.GetPseudoName("Ctor"), ctx.ToString(parent.Xaml, value)));
 				key = typeElem;
@@ -82,7 +82,7 @@ namespace ILSpy.BamlDecompiler.Handlers {
 					attrName = ctx.ToString(parent.Xaml, xName);
 				}
 
-				var staticElem = new XElement(ctx.GetXamlNsName("StaticExtension", parent.Xaml));
+				var staticElem = new XElement(ctx.GetKnownNamespace("StaticExtension", XamlContext.KnownNamespace_Xaml, parent.Xaml));
 				staticElem.AddAnnotation(ctx.ResolveType(0xfda6)); // Known type - StaticExtension
 				staticElem.Add(new XElement(ctx.GetPseudoName("Ctor"), attrName));
 				key = staticElem;
diff --git a/ILSpy.BamlDecompiler/Handlers/Records/PresentationOptionsAttributeHandler.cs b/ILSpy.BamlDecompiler/Handlers/Records/PresentationOptionsAttributeHandler.cs
index 01d648ef7..e0f3f728a 100644
--- a/ILSpy.BamlDecompiler/Handlers/Records/PresentationOptionsAttributeHandler.cs
+++ b/ILSpy.BamlDecompiler/Handlers/Records/PresentationOptionsAttributeHandler.cs
@@ -31,7 +31,7 @@ namespace ILSpy.BamlDecompiler.Handlers {
 			var record = (PresentationOptionsAttributeRecord)((BamlRecordNode)node).Record;
 
 			var attrName = ctx.ResolveString(record.NameId);
-			var attr = new XAttribute(ctx.GetXamlNsName(attrName, parent.Xaml), record.Value);
+			var attr = new XAttribute(ctx.GetKnownNamespace(attrName, XamlContext.KnownNamespace_PresentationOptions, parent.Xaml), record.Value);
 			parent.Xaml.Element.Add(attr);
 
 			return null;
diff --git a/ILSpy.BamlDecompiler/Handlers/Records/PropertyHandler.cs b/ILSpy.BamlDecompiler/Handlers/Records/PropertyHandler.cs
index c084b76e6..822fc0627 100644
--- a/ILSpy.BamlDecompiler/Handlers/Records/PropertyHandler.cs
+++ b/ILSpy.BamlDecompiler/Handlers/Records/PropertyHandler.cs
@@ -45,7 +45,7 @@ namespace ILSpy.BamlDecompiler.Handlers {
 					return new XAttribute(xamlProp.ToXName(ctx, parent.Xaml, true), value);
 
 				if (xamlProp.PropertyName == "Name" && elemType.ResolvedType.GetDefinition()?.ParentModule.IsMainModule == true)
-					return new XAttribute(ctx.GetXamlNsName("Name"), value);
+					return new XAttribute(ctx.GetKnownNamespace("Name", XamlContext.KnownNamespace_Xaml), value);
 
 				return new XAttribute(xamlProp.ToXName(ctx, parent.Xaml, false), value);
 			}
diff --git a/ILSpy.BamlDecompiler/Handlers/Records/PropertyTypeReferenceHandler.cs b/ILSpy.BamlDecompiler/Handlers/Records/PropertyTypeReferenceHandler.cs
index 45a94f91e..aa29642af 100644
--- a/ILSpy.BamlDecompiler/Handlers/Records/PropertyTypeReferenceHandler.cs
+++ b/ILSpy.BamlDecompiler/Handlers/Records/PropertyTypeReferenceHandler.cs
@@ -42,7 +42,7 @@ namespace ILSpy.BamlDecompiler.Handlers {
 			elem.Xaml.Element.AddAnnotation(elemAttr);
 			parent.Xaml.Element.Add(elem.Xaml.Element);
 
-			var typeElem = new XElement(ctx.GetXamlNsName("TypeExtension", parent.Xaml));
+			var typeElem = new XElement(ctx.GetKnownNamespace("TypeExtension", XamlContext.KnownNamespace_Xaml, parent.Xaml));
 			typeElem.AddAnnotation(ctx.ResolveType(0xfd4d)); // Known type - TypeExtension
 			typeElem.Add(new XElement(ctx.GetPseudoName("Ctor"), typeName));
 			elem.Xaml.Element.Add(typeElem);
diff --git a/ILSpy.BamlDecompiler/Rewrite/AttributeRewritePass.cs b/ILSpy.BamlDecompiler/Rewrite/AttributeRewritePass.cs
index b8e902119..a8c5ac22b 100644
--- a/ILSpy.BamlDecompiler/Rewrite/AttributeRewritePass.cs
+++ b/ILSpy.BamlDecompiler/Rewrite/AttributeRewritePass.cs
@@ -29,7 +29,7 @@ namespace ILSpy.BamlDecompiler.Rewrite {
 		XName key;
 
 		public void Run(XamlContext ctx, XDocument document) {
-			key = ctx.GetXamlNsName("Key");
+			key = ctx.GetKnownNamespace("Key", XamlContext.KnownNamespace_Xaml);
 
 			bool doWork;
 			do {
diff --git a/ILSpy.BamlDecompiler/Rewrite/ConnectionIdRewritePass.cs b/ILSpy.BamlDecompiler/Rewrite/ConnectionIdRewritePass.cs
index fe2912ff9..82ab77302 100644
--- a/ILSpy.BamlDecompiler/Rewrite/ConnectionIdRewritePass.cs
+++ b/ILSpy.BamlDecompiler/Rewrite/ConnectionIdRewritePass.cs
@@ -59,7 +59,7 @@ namespace ILSpy.BamlDecompiler.Rewrite
 		{
 			var result = new List<(LongSet, EventRegistration[])>();
 
-			var xClass = document.Root.Elements().First().Attribute(ctx.GetXamlNsName("Class"));
+			var xClass = document.Root.Elements().First().Attribute(ctx.GetKnownNamespace("Class", XamlContext.KnownNamespace_Xaml));
 			if (xClass == null)
 				return result;
 
diff --git a/ILSpy.BamlDecompiler/Rewrite/MarkupExtensionRewritePass.cs b/ILSpy.BamlDecompiler/Rewrite/MarkupExtensionRewritePass.cs
index e05eee62e..e2411672f 100644
--- a/ILSpy.BamlDecompiler/Rewrite/MarkupExtensionRewritePass.cs
+++ b/ILSpy.BamlDecompiler/Rewrite/MarkupExtensionRewritePass.cs
@@ -31,7 +31,7 @@ namespace ILSpy.BamlDecompiler.Rewrite {
 		XName ctor;
 
 		public void Run(XamlContext ctx, XDocument document) {
-			key = ctx.GetXamlNsName("Key");
+			key = ctx.GetKnownNamespace("Key", XamlContext.KnownNamespace_Xaml);
 			ctor = ctx.GetPseudoName("Ctor");
 
 			bool doWork;
diff --git a/ILSpy.BamlDecompiler/Rewrite/XClassRewritePass.cs b/ILSpy.BamlDecompiler/Rewrite/XClassRewritePass.cs
index 332454d17..2e2d25e59 100644
--- a/ILSpy.BamlDecompiler/Rewrite/XClassRewritePass.cs
+++ b/ILSpy.BamlDecompiler/Rewrite/XClassRewritePass.cs
@@ -48,11 +48,11 @@ namespace ILSpy.BamlDecompiler.Rewrite {
 
 			elem.Name = xamlType.ToXName(ctx);
 
-			var attrName = ctx.GetXamlNsName("Class", elem);
+			var attrName = ctx.GetKnownNamespace("Class", XamlContext.KnownNamespace_Xaml, elem);
 
 			var attrs = elem.Attributes().ToList();
 			if (typeDef.Accessibility != ICSharpCode.Decompiler.TypeSystem.Accessibility.Public) {
-				var classModifierName = ctx.GetXamlNsName("ClassModifier", elem);
+				var classModifierName = ctx.GetKnownNamespace("ClassModifier", XamlContext.KnownNamespace_Xaml, elem);
 				attrs.Insert(0, new XAttribute(classModifierName, "internal"));
 			}
 			attrs.Insert(0, new XAttribute(attrName, type.ResolvedType.FullName));
diff --git a/ILSpy.BamlDecompiler/XamlContext.cs b/ILSpy.BamlDecompiler/XamlContext.cs
index 6afe81eee..50063cf6e 100644
--- a/ILSpy.BamlDecompiler/XamlContext.cs
+++ b/ILSpy.BamlDecompiler/XamlContext.cs
@@ -164,6 +164,10 @@ namespace ILSpy.BamlDecompiler {
 			return ns;
 		}
 
+		public const string KnownNamespace_Xaml = "http://schemas.microsoft.com/winfx/2006/xaml";
+		public const string KnownNamespace_Presentation = "http://schemas.microsoft.com/winfx/2006/xaml/presentation";
+		public const string KnownNamespace_PresentationOptions = "http://schemas.microsoft.com/winfx/2006/xaml/presentation/options";
+
 		public string TryGetXmlNamespace(IModule assembly, string typeNamespace) {
 			if (assembly == null)
 				return null;
@@ -184,16 +188,16 @@ namespace ILSpy.BamlDecompiler {
 					possibleXmlNs.Add(xmlNs);
 			}
 
-			if (possibleXmlNs.Contains("http://schemas.microsoft.com/winfx/2006/xaml/presentation"))
-				return "http://schemas.microsoft.com/winfx/2006/xaml/presentation";
+			if (possibleXmlNs.Contains(KnownNamespace_Presentation))
+				return KnownNamespace_Presentation;
 
 			return possibleXmlNs.FirstOrDefault();
 		}
 
-		public XName GetXamlNsName(string name, XElement elem = null) {
-			var xNs = GetXmlNamespace("http://schemas.microsoft.com/winfx/2006/xaml");
+		public XName GetKnownNamespace(string name, string xmlNamespace, XElement context = null) {
+			var xNs = GetXmlNamespace(xmlNamespace);
 			XName xName;
-			if (elem != null && xNs == elem.GetDefaultNamespace())
+			if (context != null && xNs == context.GetDefaultNamespace())
 				xName = name;
 			else
 				xName = xNs + name;