YWFT Processing has no glyph for ← → · so the slide renderer was substituting `&` (the font's missing-glyph fallback) wherever those characters appeared in the title and hand labels. Wrap them in a small `.glyph` span that falls back to -apple-system / Arial Unicode MS just for those code points; the surrounding YWFT type stays untouched. Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>