I don't know if this is credible or not. There was an article on PFT that quoted Rooney as saying the Steelers would wear all black if the Colts wore all white, but this screen shot shows them wearing gold.
Also, the color rush games are consistently referred to being part of the Thurs. night package of games. I doubt the traditional Thanksgiving games will be part of that (they weren't last year).
http://profootballtalk.nbcsports.com/2016/04/16/nfl-apparently-has-a-plan-to-avoid-color-blind-confusion-for-color-rush-games/