AutoCAD 2008 User's
Guide > Control the Drawing
Views > Change
Views > Shade a Model and
Use Edge Effects >
Customize a Visual Style
You can create your own visual styles by changing the face and edge settings and using shadows and backgrounds.
Shading and color effects control the display of faces in a model.
The visual style also controls the display of backgrounds and shadows in the viewport.
Edges of different types can be displayed using different colors and linetypes. You can also add special effects such as jitter and overhang to edges.
