The icon card renders each glyph at a hero size plus a continuous sample strip (10–48px) so legibility is judged at the sizes the app uses, with the entry's optional label + description and a per-entry or card-level color. Wired end to end: icon.show publishes on the `icon` bus, the Claude extension injects an IconMessage, and conversation_view paints the card (display-only, D-78). en+nl catalogs. Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>