v2.0.0 Walnut

v2.0.0 Walnut

A fundamental leap forward for MediaBrain.

Highlights

PySide6 Migration

• Complete migration from PyQt6 to PySide6 (LGPL compliance)
• All imports, signals, and enum access patterns updated

Theme Engine

• 3 built-in themes: Light, Dark, High Contrast
• Switch themes instantly via Settings — no restart needed
• Central QSS stylesheet (350+ lines), extensible via register_theme()
• High Contrast theme with larger fonts (15px base) for accessibility

GUI Virtualization

• FavoritesView and GlobalSearchView migrated to QListView + custom delegate
• Efficient QPainter-based rendering instead of per-item widgets
• Smooth performance with 1000+ items

Tag System

• Full tag CRUD with color support and DB persistence
• Assign tags via context menu (checkboxes + "New Tag..." dialog)
• Filter by tags with AND logic in LibraryView
• 20 new unit tests (99/99 total passing)