iPhone 13 Do you think this is a fabric error or it’s repaired?

[Alvalla]

Recently I buyed a new iPhone 13, I’ve been noticing like 2 little stains on the flash of my phone since day one, I don’t see a repair history or anything like that on my phone, actually is still covered into warranty and everything works fine

 

[Jackbequickly]

If it bothers you . . . . . . . .