Not a tint. It's literally a sheet of material. You can get it at most fabric stores. It's the material they use for blackout curtains. I just cut it to size and laid it between the shade and the glass. It's really only a solution if you don't plan on opening the shade or the glass (you would have to re-lay the fabric every time you did that). As I said, a temp solution. This is why I'm interested in an opaque cover.