MarsSeed [1] filed a deletion request for plasma5-theme-catppuccin [2]: Does not work on current Arch Linux, which has KDE6.
Upstream has not been ported to the latter yet. If and when it receives the needed updates, a new 'plasma6-' package is to be uploaded to AUR. [1] https://aur.archlinux.org/account/MarsSeed/ [2] https://aur.archlinux.org/pkgbase/plasma5-theme-catppuccin/
