WPF Brush Patterns

Brush types for filling shapes and backgrounds in WPF.

1. Brush Hierarchy

Brush (abstract)
├── SolidColorBrush      ← Single color
├── GradientBrush
│   ├── LinearGradientBrush  ← Linear gradient
│   └── RadialGradientBrush  ← Radial gradient
├── TileBrush
│   ├── ImageBrush       ← Image fill
│   ├── DrawingBrush     ← Drawing fill
│   └── VisualBrush      ← Visual element fill
└── BitmapCacheBrush     ← Cached visual