Earpiece Problem

[caleniko]

I got my iphone 11 pro now for a while and now noticed some strange lines under or in the earpiece. Does somebody know what that could be and how i can remove those, because they annoy me quite a lot

 

[BugeyeSTI]

That screen in the earpiece is made from steel.. You could try to clean it with isopropyl alcohol using a Q-tip or toothpick. You could also use a black sharpie to color it in