GTK-2/GTK-3 Theme, adapted for Plasma Theme "Lime-Green", which you can download: Here
The theme was tested on KDE Plasma 5.16.0, for GTK applications in Plasma.
Link to Wallpaper "KDE Plasma 4K And HD Dark Textured Wallpaper 4 Colors ": Here
Link to Wallpaper " KDE Plasma Abstract 279 HD ":Here
Author Wallpapers: Charlie-Henson