Bo, is there such a thing as a type of film anyone can put on the skylight to stop the UV rays from yellowing the shower? If there isn't, someone should invent one. I'm surprised the RV manufacturers still use the white/ off white fiberglass for showers because of that issue. I like the motorhomes that use the darker marble looking ones because those won't turn color. Just thought I'd ask you because I'm hoping you can let me know. Thank you and God bless!