The adapters won't work right if inserted upside down so I don't expect you'd be able to reverse the colors yourself. I had noticed the two-toned look but didn't think beyond that. It does give a different look using the same materials. If so, I'd call that smart planning on someone's part! And good eye on yours. Going back to check this out on their website with the various photos.
BTW I just saw a post from someone who ordered and received the pink band but the adapters are giving her problems. Wondering if it got assembled at the factory wrong for her color choice.