CelticOaksFarm is right: there are people working on introducing new colors to Sebastopols.
I know of people working on colors in Calls. Mostly the rare pastel colors. So there are some projects in waterfowl. Although the Calls are all purebreds, no other breed introduced.
From my point...
Oh my goodness, duckyfrom oz. That is awful. It causes so much difficulty when standards are changed.
I took a quick peek and it doesn't look like cinnamon is a recognized color in the USA.
"Mossy" is splotchy color on each individual feather and it is usually a laced feather. It's a defect, by the way, but very pretty.
Sorry, I had a photo of the blue mossy goose in my BYC folder and I can't seem to access it.
I had a blue mossy saddleback gander hatched. That would have made a nice project to try to develop a new color, but we ate him.
It takes a lot of time and money to fix a new breed or a new color. I know a lot of people who are reducing their flocks right now due to the high cost of feed and...