When the iPhone 7/7 Plus was first released there was an option to have a black wallpaper and thus the dock to match (no jailbreak). I had this for a while. Then today, I noticed that my dock is no longer black, like my wallpaper. To fix it, I tried reapplying my original wallpaper and even a new one from one of those original websites. Alas, my dock still isn't black. Any ideas?