Possibly seeing the inside of my iPhone 13 Pro

I have had my new iPhone 13 pro for a few days now! However, I noticed something that is kind of making me a bit concerned! Whenever I take out the phone in direct sunlight or place a flashlight by it, I feel as though I can possible see a small portion of the inside of the phone because there appears to be something that it both bronze in color and possibly metallic right on top of the notch area! I honestly don’t know if supposed to be like that you what! And I sadly can’t take a picture of it since I I don’t have a camera that can capture it in enough details! I dont know what to do! And I can’t jUst return to apple just yet since all iPhones are sold out around me! The only way I could return is by getting my money back and using my iPhone 12 temporarily until a new shipment arrives! I just thought I would at least try to find out more about this. If it even worth getting upset about!