linestyle
The linestyles of all prism edges. The size of the array is the number of edges multiplied by three, some of which can be invisible. An invisible edge has a linestyle of null. Each array element can be a complex linestyle or a simple color. The order of edges is as follows:
Control facet edges
Auxiliary facet edges
Extrusion edges
The number of auxiliary and extrusion edges is the same as the number of control edges. Where zero-length auxiliary edges occur, extrusion linestyles are repeated.
Changing any of their values will redraw the prism.