---
title: systemColorsDidChangeNotification
framework: appkit
role: symbol
role_heading: Type Property
path: appkit/nscolor/systemcolorsdidchangenotification
---

# systemColorsDidChangeNotification

Sent when the system colors have changed, such as through a system control panel interface.

## Declaration

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

## Discussion

Discussion This notification contains no notification object and no userInfo dictionary. To observe this notification using Swift concurrency, use NSColor.SystemColorsDidChangeMessage.