---
title: NSColor.SystemColorsDidChangeMessage
framework: appkit
role: symbol
role_heading: Structure
path: appkit/nscolor/systemcolorsdidchangemessage
---

# NSColor.SystemColorsDidChangeMessage

## Declaration

```swift
struct SystemColorsDidChangeMessage
```

## Topics

### Initializers

- [init()](appkit/nscolor/systemcolorsdidchangemessage/init().md)

## Relationships

### Conforms To

- [NotificationCenter.MainActorMessage](foundation/notificationcenter/mainactormessage.md)
- [SendableMetatype](swift/sendablemetatype.md)