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

# NSButton.GradientType.convexStrong

As with NSGradientConvexWeak, the top-left corner is dark gray, and the bottom-right corner is light gray, but the difference between the grays is greater, so the appearance of sticking out is stronger.

## Declaration

```swift
case convexStrong
```

## See Also

### Constants

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