> Portal Navigation:
> 
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> - Pages are either content pages (article or reference text) or menu pages (a list of links to child pages).
> - To get a menu page, truncate any URL to a parent path and append `.md` (e.g. `https://dev.wix.com/docs/sdk.md`, `https://dev.wix.com/docs/sdk/core-modules.md`).
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## Resource: $w

## Namespace: panel-thumbnails

## Article: Introduction

## Article Link: https://dev.wix.com/docs/velo/velo-only-apis/$w/panel-thumbnails/introduction.md

## Article Content:

# Introduction
Panel thumbnail groups allow users to select an option using a set of thumbnail images.

<blockquote class="important">

__Important:__

This element is available only in [custom panels](https://support.wix.com/en/article/wix-blocks-designing-custom-panels-for-your-widgets-action-bar-buttons) built in Wix Blocks. [Wix Blocks](https://support.wix.com/en/article/wix-blocks-check-out-our-articles) is an editor for building Wix apps.
</blockquote>