---
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
metadata:
  effectiveApiVersion: ''
  affectedApi: []
  primaryTag:
    displayName: Themes
    handle: dev_themes
  secondaryTag:
    displayName: New
    handle: new
  indicatesActionRequired: false
  createdAt: '2025-05-12T20:47:36-04:00'
  postedAt: '2025-05-21T08:00:00-04:00'
  updatedAt: '2025-05-16T15:40:39-04:00'
  effectiveAt: '2025-05-21T08:00:00-04:00'
---

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).