WordPress Block Editor & Full Site Editing

Overview

Full Site Editing (FSE) is production-ready (since WP 6.2) and treats everything as blocks—headers, footers, templates, not just content. Block themes use HTML templates + theme.json instead of PHP files + style.css.

Key Components:

• theme.json: Centralized colors, typography, spacing, layout
• HTML Templates: Block-based files (index.html, single.html)
• Template Parts: Reusable components (header.html, footer.html)
• Block Patterns: Pre-designed block layouts
• Site Editor: Visual template customization

When to Use: ✅ New themes, consistent design systems, non-technical user customization ❌ Complex server logic, team unfamiliar with blocks, heavy PHP dependencies

Full Site Editing Architecture