How to install a custom wallpaper on your PS4 – PlayStation Wallpapers
PS4] [Screenshot] Now that we can set custom wallpapers, I'd like the option to choose the icons of any theme that I own and use custom wallpapers with it. : r/PS4
Developer Hints at PS4 Custom Wallpapers Coming with Future System Update; Releases Wallpaper for PS4
PS4 Pro add and use any Photo as Custom Wallpaper - BlogTechTips
PS4 now allows custom (Giantbomb) wallpapers - PlayStation 4 - Giant Bomb