[Question] Adding to iOS Default Wallpapers

I am wanting to reintroduce a wallpaper from ios 8 to ios 10. I know the location is '/Library/Wallpaper', and have the wallpaper already. Just curious if its a case of copying wallpaper to the location, or do i need to update any other files for ios to recognise the new wallpaper (i saw .plists in the directory as well).

I know i can just select from Photos and put as wallpaper, but wanting to keep it tidy.