Yes, a trip package. And the colour didn't have to be gold...it could be any of the colour palette of the day.
From Wiki:
Numerous trim and option package variants of the Duster were offered with names that included Feather Duster, Gold Duster, Silver Duster, Space Duster, Duster Twister, 340 Duster and 360 Duster. These marketing variations of the basic Duster design targeted customers seeking economy, cargo capacity, and/or performance.