Logo on my Domino

[travisaurus_rex]

So I've owned my Domino since February and one of my favorite things about it is the embellishment on the Spydie logo. You know, how it mirrors the scale. Anyway, I noticed today that it looks like it's either rubbed off or corroded away or something. It may just be gunked up, but I'm not sure. Anyone else have this issue or know of a way to remedy the situation?

Thanks much!
Per Ardua