Hey there, after a while I started noticing some kind of black dots or dents if you want on the magic keyboard. It is the 2017 with numeric block. I am curious what this is. It can't be wiped of and looks like scratches or something that came from factory but I did not notice? There are similliar ones on the other side and really tiny even not visible across the keyboard from time to time. From what I observe, it does not really grow or smth like that.