Changes: - Solo and Mute buttons now appear as icon buttons in the track header (next to trash) - Removed redundant solo/mute button row from the expanded controls - Cleaner, more compact layout - Canvas now uses parent container's size for proper full-height rendering - Added track.height to canvas effect dependencies 🤖 Generated with [Claude Code](https://claude.com/claude-code) Co-Authored-By: Claude <noreply@anthropic.com>