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# colorSpaceDidChangeNotification

Posted when the color space of the screen has changed.

```
class let colorSpaceDidChangeNotification: NSNotification.Name
```

## Discussion

The notification object is the [`NSScreen`](/documentation/AppKit/NSScreen) object whose [`colorSpace`](/documentation/AppKit/NSScreen/colorSpace) has changed.. This notification does not contain a `userInfo` dictionary.

To observe this notification using Swift concurrency, use [`NSScreen.ColorSpaceDidChangeMessage`](/documentation/AppKit/NSScreen/ColorSpaceDidChangeMessage).

---

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