two-toning using factory parts is one of my favorite looks. You might not recall this, but I did the same to my old 2006 HHR...replaced seat covers , arm rests, and carpet suing factory ebony upholstery while retaining the factory graphite bits
...gray and black, when using factory OEM materials looks AWEOMSE!
Plus, it's a one-off look that cannot be questioned.
Looks great Bill