# Skins

**RadLightBox** uses skins to control its overall look-and-feel. A skin is a set of images and a CSS stylesheet that can be applied to the control elements (items, images, etc.) and defines their look and feel. By default all controls in UI for ASP.NET AJAX suite have a polished look and feel which is consistent across the whole product line.

## Built-in skins

These are the skins provided by Telerik. They are embedded in the **Telerik.Web.UI.Skins.dll** assembly (except the Default one). To use a built-in skin the user only needs to set the **Skin** property of the control.

Below is a set of the Telerik RadLightBox skins:
![lightbox skins](https://www.telerik.com/products/aspnet-ajax/documentation/assets/72b5edecffc3d6187ceddcfaac7a4346/lightbox-skins.png)

> note The **Material** skin is available for the [Lightweight RenderMode](https://docs.telerik.com/devtools/aspnet-ajax/controls/render-modes) only. If you experience visual issues with it, make sure your controls are not using the default Classic mode.

## See Also

* [HTML Output](https://www.telerik.com/products/aspnet-ajax/documentation/controls/lightbox/appearance-and-styling/html-output)