tonyfettes [1] filed a deletion request for matcha-icon-theme [2]: Upstream author choose to use Qogir icon theme as the default icon theme for matcha GTK theme and KDE theme so this package is no longer supported by upstream.
[1] https://aur.archlinux.org/account/tonyfettes/ [2] https://aur.archlinux.org/pkgbase/matcha-icon-theme/
