# System.Windows

``` diff
 namespace System.Windows {
-    [ContentPropertyAttribute("Value")]
-    [XamlSetMarkupExtensionAttribute("ReceiveMarkupExtension")]
-    [XamlSetTypeConverterAttribute("ReceiveTypeConverter")]
-    public class Setter : SetterBase, ISupportInitialize
+    [XamlSetMarkupExtensionAttribute("ReceiveMarkupExtension")]
+    [XamlSetTypeConverterAttribute("ReceiveTypeConverter")]
+    public class Setter : SetterBase, ISupportInitialize
 }
```

