Welcome, Rockhammer,
I was the senior chemist for Sel-Rex West in the late '60's - early '70's. Of course, that was before the more modern cyanide replacement baths came in. We did have non-cyanide, sodium gold sulfite baths at the time. Their tradename was BDT (Bright, Ductile, Temperature resistant). We also had a line of jeweler's color golds based on a phosphate formula.
Electrowinning is the electrolytic winning of metal from a solution in which the metal has been previously dissolved.
Electrorefining is the dissolving of impure anodes and the subsequent depositing of pure metal at the cathode.
Electroplating is the electrolytic deposition of a metal on a metallic or non-metallic substrate for decorative or technical reasons.
All 3 require a somewhat exacting formulation, in order to produce a sound, usable deposit at the cathode.