BLACKBOX PORTABLE DATA
When you connect this app/USB folder using Settings > CONNECT DRIVE ROOT, BLACKBOX writes portable JSON data here.
This folder can contain settings, favorites, plays, history, session, playlists, metadata, profiles, track moments, lyrics cache, and visualizer looks, plus Artwork/ for custom covers.
These files survive browser history/cookie clearing, but keep a separate EXPORT EVERYTHING ZIP backup on another device too.
If you already have BLACKBOX data files, keep them when updating the app; do not overwrite them with an empty Data folder.
