Ryan, I am with you. In fact, I have a Riv Road Standard that is a twin of this one, just in blue, on which I have 650b wheels with Silver hubs and a Rene Herse crank. And, then, I am the proud owner of one of the Riv Mystery Bikes, and that has Silver cranks and hubs. In good time these other two will find themselves with OM-1 derailleurs I'm sure.
(The Ritchey double crank has lasted so long on this Riv I feel I must honor its service by leaving it there until it literally falls to pieces.)
And, yes, as wise people on this list have told us, all derailleurs should be (small-s) silver, and I could not agree more ...
Steve