Plasma Desktop theme with Gruvbox colors
git clone https://github.com/3ximus/gruvbox-plasma
mv gruvbox-plasma/ ~/.local/share/plasma/desktoptheme/
rm -rf ~/.local/share/plasma/desktoptheme/gruvbox-plasma
This theme was based on the Arc Theme port for KDE
The icons I use to go with this theme are from papirus edited by me and can be found in my dotfiles, just replace them in your current icon theme (or duplicate your current one)