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# UIUserInterfaceLevel

Constants that indicate the visual level for content in the window.

```
enum UIUserInterfaceLevel
```

## Topics

### Interface levels

[`UIUserInterfaceLevel.unspecified`](/documentation/UIKit/UIUserInterfaceLevel/unspecified)

An unspecified interface level.

[`UIUserInterfaceLevel.base`](/documentation/UIKit/UIUserInterfaceLevel/base)

The level for your window’s main content.

[`UIUserInterfaceLevel.elevated`](/documentation/UIKit/UIUserInterfaceLevel/elevated)

The level for content visually above your window’s main content.


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