I started noticing some slight black discoloration on one side of my Dyson Airwrap a short time ago and its progressively gotten worse. I just got my Dyson Airwrap at the end of November 2023 and Ive been really careful with it. I’m not sure why it’s starting to show this discoloration. Is there something that can be done to clean it/restore its original color, or prevent it from getting darker/bigger? Ive tried cleaning it, thinking it might’ve been some dirt, but it won’t come off either.