Optimized set, clear flags to update local db after bulk operation instead of after every row. Added spinner for localize_marvin_database(). Highlight processed row during flag updates.
Added logic to prevent overlapping spinner windows.
Normalized "Updating Marvin Library…" message.
Improved busy_window logging.
Report mainDb size in localize_marvin_database().
Add 'version' to hash_cache.
Updated Help file, trimmed Marvin Library image.