The tint should be in the glass it is in mine, Shower doors are expexted
to be cleaned with cleanser, an abrasive. But try a small area to be
sure. Soap scum should come off with water and a brush, water- mineral
deposits with a mild acid, Vinigar or a product stronger such as Lime
away, or CLR. Use ventilation breathing any acid is not good although
they are mild and diluted.