its4nitya [1] filed a orphan request for gnome-shell-extension- topicons-plus [2]:

The maintainer hasn't updated the PKGBUILD to work with the latest version of gnome and it has been over 4 months. The pkgver needs to be changed to 22 and the corresponding hashes need to be updated.

[1] https://aur.archlinux.org/account/its4nitya/ [2] https://aur.archlinux.org/pkgbase/gnome-shell-extension-topicons-plus/