---
title: NSButton.GradientType.concaveWeak
framework: appkit
role: symbol
role_heading: Case
path: appkit/nsbutton/gradienttype/concaveweak
---

# NSButton.GradientType.concaveWeak

The top-left corner is light gray, and the bottom-right corner is dark gray, so the button appears to be pushed in.

## Declaration

```swift
case concaveWeak
```

## See Also

### Constants

- [NSButton.GradientType.none](appkit/nsbutton/gradienttype/none.md)
- [NSButton.GradientType.concaveStrong](appkit/nsbutton/gradienttype/concavestrong.md)
- [NSButton.GradientType.convexWeak](appkit/nsbutton/gradienttype/convexweak.md)
- [NSButton.GradientType.convexStrong](appkit/nsbutton/gradienttype/convexstrong.md)