Block Themes vs Classic Themes: Complete Migration Guide for 2026
A complete, step-by-step guide to migrating from classic WordPress themes to block themes in 2026. Covers key differences, theme.json v3, template conversion, b…
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How to Migrate Widget Areas to Block Theme Template Parts Without Breaking Functionality
Learn how to map classic WordPress widget areas to block theme template parts — from sidebar-1 to complementary regions, footer columns to wp:columns blocks. In…
How to Build a Hybrid Theme That Supports Both Classic and Block Editing
WordPress has always offered flexibility in how themes render pages. For years, classic PHP templates ruled the ecosystem. Then Full […]…
How to Build Interactive Blocks with the WordPress Interactivity API
Learn how to use the WordPress Interactivity API to build stateful, client-side interactive blocks using real data-wp-* directives, @wordpress/interactivity sto…
How to Add Custom Block Supports in theme.json for Enhanced Editor Controls
Learn how the WordPress block supports system works, how to enable and disable controls per block in theme.json, configure spacing, border, and color supports, …
How to Use Block Filters and Hooks to Modify Block Behavior in Themes
A practical guide for block theme developers on using PHP and JavaScript block filters to modify render output, adjust block metadata, extend blocks with custom…
Twenty Twenty-Seven Is Coming: What Commercial Block Theme Authors Need to Know Now
The WordPress core team has announced the Twenty Twenty-Seven default theme. For commercial block theme authors, a new default theme is never just cosmetic — it…
How to Create Block Variations in WordPress to Extend Core Blocks Without Code Duplication
A developer guide to wp.blocks.registerBlockVariation: scope, isActive, innerBlocks, and how variations differ from block styles, patterns, and custom blocks. B…
How to Build Custom Blocks for Block Themes Using the WordPress Block API
A practical guide to building custom Gutenberg blocks for block themes, block.json metadata, static vs dynamic blocks, editor + frontend code, theme.json integr…
How to Create Custom Block Styles That Extend the WordPress Design System
Learn how to create custom block styles in WordPress. Covers registering styles with PHP and JS, styling with CSS and theme.json, removing defaults, and buildin…
How to Use Style Variations in Block Themes to Offer Multiple Design Presets
Learn how to create style variation JSON files for WordPress block themes, override colors, typography, and spacing per variation, preview designs in the Site E…
Fluid Typography in Block Themes: The Complete CSS Clamp Guide
Learn how to build a viewport-responsive fluid typography scale in WordPress block themes using CSS clamp() and theme.json. Covers the slope-intercept formula, …