Well, certain sunglasses also help objects standing out. Wouldn't be cool to have a high vis paint the shows up with special sun glasses that does not show up without them. Someone could make a mint with the paint and sunglasses.

I had a hard time finding sunglasses that I like that were not too dark or polarized.

Seems to me the best is to have LEB strobe. Otherwise it would not be offered on new gliders.