I'm not entirely sure if this is the case for everyone or if it is just my browser being odd, but for some reason I no longer see the favorites or bookmarked button change color on the actual manga screen. This isn't a huge issue, as the borders show up when I view, say, the artist's library, but it can get confusing if I can't remember whether or not I already have it in one of these marked categories. Again, I'm not sure if this is just me, but I remember it working before.