ui_tts_import.js gives its frame and toolbar to ui_tts_import_screens.js and its window drop to ui_tts_file_drop.js; material_inspector.js gives the PNG chunk reader to png_metadata.js. 221 texts no code uses any more leave locales.js (both languages). No behaviour changes. Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>