The Appearance and Net Batch Appearance panels (which appear when one or more nets are selected) offer the same options for controlling net appearance. The options on these panels appear as follows:
Type - Selects either Wires (for a thin line) or Pipes (for a thicker, filled line)
Color - Selects the line color (for Wires) or the fill color (for Pipes) of the net
Thickness (Pipes Only) - Selects the width of the net
Routing - Selects the type of routing algorithm used:
"Full Path" always draws the entire net
"Stubs As Needed" draws stubs whenever the net has more than 3 connections
"Stubs Only" always draws stubs, regardless of the number of connections
Borders (Pipes Only) - Selects the thickness of the border.