• added a "syncing metadata" banner that is displayed while the indexer is scanning metadata
• added a "sync metadata on startup" option to the settings view
• moved the hotkey tester to its own dedicated dialog to free up some valuable screen real estate in the settings view
• fixed PulseOut plugin volume adjustment to work better across a wider range of audio cards. this should also improve crossfade quality
• fixed a very old bug that was sometimes causing delayed redraws or flickering during layout in complex views