Gold (anodized) forks are a trademark color of good quality suspensions manufactured by a Swedish company by the name Ohilns.
However, many high quality manufacturers today offer a clear anodize.
Without getting into the who's, where's and when's regarding that, my thoughts are that Suzuki wanted to bring attention to the new USD forks and what other color would do that better than the standard "gold".
2012 DL1000 Adventure (Tinkerbell)
PC-V, TRE, CR8EIX , ECM, K&N, RDL, PR4, PC-8, EB H4, WERKS, Madstad 22", 17/43 gearing, AdventureTech: Fork brace, shelf, mirror extenders, SpeedoDRD, wheel spacer, Head's-Up voltage monitor, Goldwing pegs, Sonic 1.1. Wolo Bad Boy.