Olympus are "stupid". Why make silver lenses?

dprstevie wrote:

Olympus make silver cameras, and black cameras, or black & silver cameras. The OM-D is a great example.
But then they make silver and champagne colored lenses - which don't happen to go with their flagship OM-D.

I cannot understand any logic in this? It's not even cheaper to produce.
Surely black is cheaper, and has the benefit of going with both silver and black camera bodies.