v2.2.0

New Features

• Background music playlists: mix tracks from your RomM server, local files, and auto-synced folders, with reordering and per-track toggles in the new Theme > Music settings
• Server music browser: explore game soundtracks hosted on RomM (grouped by game, with streaming previews) and add them as background music or UI sound effects
• Custom UI sounds: assign RomM sound clips or local audio files to any interface sound, with sample and reset-to-default controls on the Sounds screen
• Soundtracks included in multifile ROM downloads are organized into the public Music folder (Music/RomM/Platform/Game) instead of the game folder
• Game & Watch and Amiga now sync and launch via RetroArch (requested in #280)

Improvements

• Hitting the edge of a list now gives a single subtle buzz; softer default toggle sound

Bug Fixes

• Fixed Amiga Kickstart checksum validation and multi-disk playlist handling