MarsSeed [1] filed a deletion request for nx-plasma-look-and-feel-git [2]: Unused. Does not work on current KDE Plasma 6. To this day, upstream is only maintained for KDE Plasma 5. If they ever port it to Plasma 6, a properly named package should be submitted to AUR ("plasma6-themes-*"). [1] https://aur.archlinux.org/account/MarsSeed/ [2] https://aur.archlinux.org/pkgbase/nx-plasma-look-and-feel-git/