Document Listbox from #45 New Listbox page: items and templates (escaping, the Html opt-out), widgets inside items, drag and drop by pointer and keyboard, the act-then-revert on_move, options, events, methods and keyboard. Linked from the sidebar and Home. The Widget Catalog lists it (21 widgets), the Roadmap marks it shipped under Priority 2c with Kanban next, and the dhxpyt comparison's listbox row moves from 🔷 to ✅⭐. Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>