[vtkusers] color in wireframes

[N Smethurst]

Hello everyone.

I'm not sure if this is a bug or a feature (?) so I thought I would ask 
everyone. I have noticed that wireframes only get colored on the front 
face; the back face it totally black. This can only be fixed by turning up 
the ambient light to levels where it makes surface representation look 
very bad. Thus, one is left in a position where the idea of switching from 
one mode to the other is not an option.

I noticed a few messages in 2001 regarding this problem so this has been 
the case for some time. Is this a bug? Is there an easy way of solving the 
problem that doesn't involve just avoiding it?

Thanks

Nick