---
title: UISplitViewController.BackgroundStyle.sidebar
framework: uikit
role: symbol
role_heading: Case
path: uikit/uisplitviewcontroller/backgroundstyle/sidebar
---

# UISplitViewController.BackgroundStyle.sidebar

A style that applies a blurred effect to the background of the primary view controller.

## Declaration

```swift
case sidebar
```

## Mentioned in

Optimizing your iPad app for Mac

## See Also

### Background styles

- [UISplitViewController.BackgroundStyle.none](uikit/uisplitviewcontroller/backgroundstyle/none.md)