Just got the new base and antenna, installed it. Took half an hour, tops (most of which was digging around for a torx screwdriver).
It looks like they're different colors, but it's mostly the texture. The antenna is smooth, and it reflects light better, making it look a lot darker. Really, they're close to being the same color.
I bought the antenna and base from CFM, and I highly recommend it. With the last shorty antenna I had, I got no reception in my garage. With this one, I got two stations in, very clear. Also, CFM got my order to me 3 days from placing my order, so they're fast too.