Touch up paint for my iPhone XR camera lens frame

Hi Folks,

My XR has a couple dings on the frame around the lens. I lifted the pic below from someone else post.. but I have the same damage. Mine is space grey.

Are there any touchup paints I can use to fix this? Again.. I am looking for space grey. I mean I keep my XR in a quality case guard with a good screen protector.. So any ding on my iPhone totally annoys me.

Thanks for any info you have to share