---
title: didChangeNotification
framework: appkit
role: symbol
role_heading: Type Property
path: appkit/nscolorlist/didchangenotification
---

# didChangeNotification

Posted whenever a color list changes.

## Declaration

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

## Discussion

Discussion The notification object is the NSColorList object that changed. This notification does not contain a userInfo dictionary. To observe this notification using Swift concurrency, use NSColorList.DidChangeMessage.