MarkupExtension Class

namespace Noesis | MSDN

Provides a base class for XAML markup extension implementations.

Markup extensions return objects in a more sophisticated way than type converters alone can accomplish. Markup extensions use the known character sequence of an opening curly brace { to enter the markup extension scope, and a closing curly brace } to exit.

<Path Fill="{StaticResource GlyphBrush}"
      Data="{Binding Path=Content, RelativeSource={RelativeSource TemplatedParent}}"/>