WoefulDerelict [1] filed a deletion request for flowcanvas [2]: The only consumer of this package, ladish, has chosen to embed the library. As this software is deprecated there aren't likely to be any other consumers so it should be safe to delete.
[1] https://aur.archlinux.org/account/WoefulDerelict/ [2] https://aur.archlinux.org/pkgbase/flowcanvas/
