German prose never quotes narration, so displaying the guillemets makes a
mislabeled line obvious at a glance. Extraction strips them from ~80% of
segments, so they are rendered rather than stored: dialogue rows display
wrapped in » «, lines that kept their own marks are left as-is, and the saved
text is untouched so synthesis and exports are unaffected. A toolbar button
toggles visibility and the choice persists.
Co-Authored-By: Claude Opus 5 <noreply@anthropic.com>