Take a look at this article written by Mahesh Sabnis and find out some useful information about the Brush and Brush Converter classes.
The ‘System.Windows.Media’ namespace provides useful types like Brush, Brushes, SolidColorBrush, VisualBrush etc. that enable integration of rich media, including drawings, text, and audio/video content in Windows Presentation Foundation (WPF) applications. One of the most important classes provided in this namespace is the ‘BrushConverter’. This class converts the color name (string) to a Brush object. The ‘Brushes’ class contains all the colors as public properties. Using reflection these properties can be accessed as demoed in this article.