iOS 13 Wallpapers, for the Mac, and in dynamic version. Light from 7:30 AM, Dark from 8:30 PM.
Well, all you have to do is to right-click on the wallpaper and et it as Desktop Picture. If you want to add them to the default macOS wallpapers, check out the DocSystem's macOS Background Manager https://github.com/DocSystem/macos-background-manager
Enjoy ! You can download all the wallpapers here : Red Green Blue Grey & Black