I never thought about this before, but here's my two cents...
This could be done for next to nothing. Find a scrap of cardboard and cut out an image to make a stencil. Spray a light coat of paint in a color that contrasts with the color of the screen. This might only need to be done on the inside of the screen. From what I've been reading, the problem seems to occur most often when exiting.
I have no idea how well this will work, but YOU can test it and get back to me
