2016 GT wheel touch up paint???

Has anyone found a suitable touchup paint for the GT 19" rims on the 2016's? I found two little nicks on the spokes near the center. I have no idea how they got there as I don't recall hitting anything and they don't look like curb rash at all. I suspect another vehicle "shot" a few rocks or something at the wheel, at least that's what it looks like. My car is meteor Gray but the wheels, although close in color have a bit more brown in the paint. Does mazda make a wheel touch up pen or has anyone found a very close match from duplicolor or the like for the wheels?

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