Hi Dink , no, the sandy background seems to show a 'truer' color of the marbles than other types of background (if I can get the pics right), and at this time of year it also helps remind me of summer!
The opaque lighter purple color threw my off since I'd associate a light purple more to Vitro than Master. The brown + pattern says Master to me but who knows? Not sure, maybe I should have posted in ID section but would love to see other Masters with a similar purple, sunbursts or otherwise