This is a KDE Plasma setup with a monochrome look. What components are used?
Global Theme: Graphite https://github.com/vinceliuice/Graphi...
Icons: Gruvbox Plus https://github.com/SylEleuth/gruvbox-...
Kvantum Theme: Graphite https://store.kde.org/p/1667587
Wallpaper: https://www.deviantart.com/illyaza/ar...
You can also add any widgets you need and change the fonts according to your preference