In order to bring myself up to speed on all things PM in the 90s, I finally bought Alex's book covering 1974-2009. One thing which really struck me while going through the years was the beautiful, easy-to-understand box backgrounds in 1995. They instantly tell you which sets go with what, the colors are all complementary to the toys and they are designed to be simple enough for a child to understand. Though 1995 was not the first year nor the last for these backgrounds, it does appear to my eye to have been the high-water mark (prior years not being as uniform or as widely used, while later years in the 90s the backgrounds were changed to the detriment of the look).