I've done a lot of research on these two brands of outdoor furniture / patio furniture in terms of colors fading. I was wondering for Polywood, after 10-20 years has anyone seen the black or slate grey fade? Similarly, for Loll Designs, has anyone seen the blue or black fade? There are some miscellaneous comments about this here and there online, but few details about which colors and the timeframe during which they fade. Also, if there is fading, is it really minor or very noticeable? I do know that bright red, orange, green do fade for both brands. Despite what the brands say. Also wondering if people have found whether they scratch. Thanks!