The Diffusion theme features 13 high quality abstract wallpapers. This beautiful themepack was initially created for Windows 7, but you can use it in Windows 10, Windows 7 and Windows 8.
Enjoy these beautiful abstract wallpapers:
Size: 4.5 Mb.
Download link: Diffusion theme for Windows 10, Windows 8 and Windows 7
In Windows 10 and Windows 8/8.1, you can enable the option to pick the window frame color automatically from the current wallpaper.
Alternatively, you can Extract wallpapers from a themepack or a deskthemepack file.