I treated my gray Edith w/apple guard when I 1st got it. I have used it about 10 to 15 times now and it has turned into a darker taupe like color now I would not even call it a "gray" at all anymore. Not to sure what happenend to it???? Has this happened to anyone else? When I open the front pocket I can see how it use to be a lighter and pretty gray . I do not like at all the color it turned into. What to do?