The panel is pieced like the one in the picture below I found on pinterest that takes me Modern Quilt Guild's page, though I can't find the picture on that page, and when I google searched it, I found a flickr feed as well belonging to teaginnydesigns and it's called Atomic Quilt;
http://www.flickr.com/photos/teaginn...ns/7462829490/ (I hope that is enough credit so that this post doesn't get deleted.) Similar to that anyway. The panel of silk would be in the middle of the spaces left by the pieced borders in that picture. Only where she pieced the areas leading to those voids, mine is a single strip of fabric, and there are 6 total panels of color and the rest of the quilt is grey. Let me know if you need more. It is sandwashed silk, light weight.
Not sure what you mean when you ask "are you adding silk to it?" I was just going to make a single panel of the silk. thanks