MarsSeed [1] filed a deletion request for gtk4-customizable [2]: Unused, broken. Outdated but not even flagged. 0 pkgstats. Name is misleading.
Uses an experimental patch for which the MR has not been accepted by upstream due to lacking valid use case and not being worthwile to reimplement the existing customization framework, and the patch has not been maintained for 1.5+ years. [1] https://aur.archlinux.org/account/MarsSeed/ [2] https://aur.archlinux.org/pkgbase/gtk4-customizable/
