# JavaScript customization

The behavior of each slide can be customized by JavaScript through the Developers panel under General Settings:

![](https://1947171238-files.gitbook.io/~/files/v0/b/gitbook-x-prod.appspot.com/o/spaces%2F-LrTaL6FQB3RzlkCwQfN%2Fuploads%2FqKedTPBQFP4fJyxmdkIm%2Fimage.png?alt=media\&token=f2848976-9ba1-4a49-8bd0-34789b8239e0)

{% hint style="info" %}
In case you need a fully tailored customization with an aesthetic and/or functionality quite different from that offered by the theme, we recommend using our Design System or our [SDK](https://help.pickzen.com/developers/sdk) instead.
{% endhint %}