---
title: background
framework: uikit
role: symbol
role_heading: Instance Property
path: uikit/uidocumentviewcontroller/launchoptions-swift.class/background
---

# background

A configuration that describes the launch scene’s background.

## Declaration

```swift
@MainActor @preconcurrency var background: UIBackgroundConfiguration { get set }
```

## See Also

### Configuring the appearance

- [title](uikit/uidocumentviewcontroller/launchoptions-swift.class/title.md)
- [documentTargetView](uikit/uidocumentviewcontroller/launchoptions-swift.class/documenttargetview.md)
- [browserViewController](uikit/uidocumentviewcontroller/launchoptions-swift.class/browserviewcontroller.md)