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# subtitle

A string that the app displays in the title bar of a window when running in macOS.

```
var subtitle: String { get set }
```

## Discussion

When this property is an empty string, the system removes the subtitle from the window layout. The default value is an empty string.

> Note:
> Apps running in iOS ignore the ``doc://com.apple.uikit/documentation/UIKit/UIScene/subtitle`` property.

---

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