Nap roller, a bit darker, pero negligible para sa akin. CONTRAST is awesome, will never go back to white screen. Para ako nag upgrade ng projector !!!
From what I read White screen is ok for perfectly dark rooms with dark walls, ceilings and floors. if you have a small amount of light and the walls is light colored, grey screen is the best.
if you do not want to risk damaging your screen, buy a light colored cartolina sa bookstore and tape it to your white screen and see the difference. I used light brown as there was no light gray