lxappearance-obconf-gtk3

• Path: arch/maintained/lxappearance-obconf-gtk3
• Build failure during the 2026-07-07 “build all packages for x86_64” private-repo release pass. Needs lxappearance-gtk3, not in this arch/ tree (external-dependency class, see memory/dbmodel-qt4.md). Not fixed as part of this pass.