MarcinWieczorek [1] filed a request to merge gnome-shell-theme-super- flat-remix [2] into gnome-shell-theme-super-flat-remix-git [3]: This package hasn't been updated for half a year. Upstream master has changed so checksums won't allow it to build. I used the PKGBUILD to make a -git package which will work fine. [1] https://aur.archlinux.org/account/MarcinWieczorek/ [2] https://aur.archlinux.org/pkgbase/gnome-shell-theme-super-flat-remix/ [3] https://aur.archlinux.org/pkgbase/gnome-shell-theme-super-flat-remix-git/