MarsSeed [1] filed a deletion request for smaragd-git [2]: EOL theming engine, upstream repo archived. [a]
Does not support the current KDE Plasma 6. [a]: https://invent.kde.org/plasma/smaragd [1] https://aur.archlinux.org/account/MarsSeed/ [2] https://aur.archlinux.org/pkgbase/smaragd-git/