Damage on prop guards?

[Guorium]

Pilots please do me a favor. The circled parts of the prop guards. Have they turned white or greyish for you and have you crashed your tello before with the guards on? Mine turned white a bit and from my experience that is a sign of over flexing the plastic. Or could this be just like this from the factory?

 

[Ansia]

it's from over flexing. I've crashed mine a few times, but they don't show this.