It's a pretty color.
I've done a lot of research on those. My conclusion is that since it's gonna spend most of its time way up in the air, I'm gonna not really worry about it for now.Huge congrats on your new Mavic Air!
I have a flying buddy who also recently acquired the MA and immediately remarked about the high-pitched sound. From my experience with my M2P, and all our Mavic Pro friends, I immediately sent him this link: DJI Mavic Air STEALTH Upgrade Propellers - x4 Black
It certainly makes a difference when flying in a park with people within earshot.