- Repro steps: disable+delete N CSS snippets (all inactive at time of deletion) → click reload/refresh snippets list
- Actual result: accentColor in .obsidian/appearance.json silently reset from custom hex to “”
- Evidence: Sync version history diff screenshot showing the exact before/after
- Environment: Obsidian 1.12.7, macOS, Minimal theme, Obsidian Sync
