I hope they add some grey to Chewie's coat. He'd be a Silver Fox (Bear?) getting all the action while Han sits at the bar unable to dance.
I saw a pretty good Star Wars exhibition at the National Media Museum in Bradford a few years ago, it was well worth going to. They had loads of the original models used in the films, and the costumes were great.
He added that he is planning to go back to have a closer look.
In the original script, the X-Wing accent colours were blue - this was changed to red because the X-Wing models were filmed on a blue screen. But I believe what you're seeing is a tarp.