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# titlebarSeparatorStyle

The type of separator that the app displays between the title bar and content of a window.

```
var titlebarSeparatorStyle: NSTitlebarSeparatorStyle { get set }
```

## Discussion

To apply this value, you must associate the item’s view with its own title bar section. The default value is [`NSTitlebarSeparatorStyle.automatic`](/documentation/AppKit/NSTitlebarSeparatorStyle/automatic). The containing window’s preference can override this preference.

---

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