---
title: colorSpaceDidChangeNotification
framework: appkit
role: symbol
role_heading: Type Property
path: appkit/nsscreen/colorspacedidchangenotification
---

# colorSpaceDidChangeNotification

Posted when the color space of the screen has changed.

## Declaration

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

## Discussion

Discussion The notification object is the NSScreen object whose colorSpace has changed.. This notification does not contain a userInfo dictionary. To observe this notification using Swift concurrency, use NSScreen.ColorSpaceDidChangeMessage.