Preview Media

Registry items should include media that helps buyers understand what a block does before purchase.

Fields

• meta.stow.previewUrl as a live preview link
• meta.stow.thumbnailUrl as a static image link

At least one of these fields is required. You can include both fields, but an item is invalid if both are missing.

Automatic Screenshots

If a preview URL is provided and no thumbnail URL is provided, we will automatically generate a screenshot of the block and use it as the thumbnail.

Example

{
  ...
  "meta": {
    "stow": {
      ...
      "previewUrl": "https://example.com/previews/contact-form",
      "thumbnailUrl": "https://cdn.example.com/contact-form.png"
    }
  }
}