Dark GTK-3 Theme
Modified Original Breeze GTK-2/3 Theme, adapted for Plasma Theme Gently , which you can download: Here
The theme was tested on KDE Plasma 5.17, for GTK applications in Plasma.
Link to Wallpaper GhostHouse Abstract 45 HD Wallpaper : Here
Link to Wallpaper Andromeda Ocean And Ship 02 HD Wallpaper : Here
Link to Wallpaper KDE Plasma Scenery 64 HD : Here
Author Wallpapers: Charlie-Henson