---
title: Block previews are now available in theme editor - Shopify developer changelog
description: Shopify’s developer changelog documents all changes to Shopify’s platform. Find the latest news and learn about new platform opportunities.
source_url:
  html: https://shopify.dev/changelog/block-previews-now-available-in-theme-editor
  md: https://shopify.dev/changelog/block-previews-now-available-in-theme-editor.md
---

[Back to Developer changelog](https://shopify.dev/changelog)

May 21, 2025

Tags:

* Themes

# Block previews are now available in theme editor

Block presets now have visual previews in the picker, similarly to section previews.

![Block preview](https://shopify.dev/assets/themes/theme-editor/add-block-preview-empty.png)

No action is required—previews will work automatically. If you want to further customize how your blocks appear in preview mode, learn more about the optional `visual_preview_mode` attribute in our [theme editor documentation](https://shopify.dev/docs/storefronts/themes/best-practices/editor/integrate-sections-and-blocks#detect-the-theme-editor-visual-preview).