hi, my primary machine is a AluBook 17" 1.33 G4. i picked it up when it came out last september and used it exclusively for my design and writing. i don't use an external keyboard but a 5-button mouse. several months ago, i started noticing funny black spots on the aluminum where i rest my palms, both left and right sides of the trackpad. i know the colour is anodized so it's not the paint coming off but it's starting to bother me. has anyone noticed this as well? my palms get sweaty after a while because the palm rests get hot, but i don't sweat profusely. should i do something about this with apple? it's only a cosmetic issue but i still don't like my beautiful alu to have blemishes. i attached some photos of the spots
left side

close up

right side


left side

close up

right side










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