Visuals are classes that render a control.
Controls don't know anything about their visuals. Or should they?

Name the thing GuiVisualizer?


Screen
  .Desktop
  .Visualizer

Control
  .VisualizerChanged

Visualizer
  .CreateRenderer<ControlType>()



public enum ButtonState {
  Disabled, Normal, Pressed, Hover
}

public interface IButtonRenderer {
  public ButtonState State { get; set; }
  public string Text { get; set; }
}

public class FlatButtonRenderer : IButtonRenderer {
  
}




This might not yield optimum performance because images have to be cached
on textures

interface IFlatControlRenderer<ControlType> {
  void Render(ControlType control, FlatGuiPainter guiPainter);
}