Since you either didn't, couldn't or wouldn't take a look at Trekwoods's site, I took the liberty to spend about 3 minutes doing it for you. Your solid surface countertop color is: <drumroll> HI MACS (manufacturer) VENUS LITE LIBRA (color).
You can, if you see the need, find the information at this Trekwood link:
http://www.trekwood.com/parts-search...23+%2F+Keyword
Sometimes, it's much easier to just do it yourself rather than complain that the dealership isn't helping you.
I hope this answers your questions and you can find the material to complete your folding countertop extension.