Visual Theme Builder
- Drag-and-drop canvas with real-time preview
- 29+ block component types organized by category
- Row layouts: 1-column, 2-column, 3-column, custom sections
- Per-column properties (background, padding, border, alignment)
- Integrated HTML/PHP code editor with syntax highlighting
- PDF preview with real order data
- HTML quick preview
- Template duplication
- Built-in template editing (modify default templates directly)