Dollger Polarized Sunglasses for Men Women Retro Classic UV400 Protection Sunglasses

Wearing glasses for a long time will make the legs of the glasses fade?

Are these frames sturdy enough to remove the dark lens and have LensCrafters insert prescription lens?

I am looking for glasses with a pink-colored lens completely through the lens not just a pink coating on dark glass, which is this?

Are these made of plastic