Edge Color by Material - Shading

[archtrot]

I've searched, but have not found any post that addresses this question:
Is it possible for edges (color by material) to be shaded by the sun?
As you can see in the attached image, edges in shade or shadow are unaffected and stand out too much.

[voljanko]

Maybe you could disable the edge visibility (View/Edge Stile/Edges).