---
title: alpha
framework: appkit
role: symbol
role_heading: Instance Property
path: appkit/nsscrubberlayoutattributes/alpha
---

# alpha

The item’s alpha value.

## Declaration

```swift
var alpha: CGFloat { get set }
```

## See Also

### Controlling the layout

- [frame](appkit/nsscrubberlayoutattributes/frame.md)
- [itemIndex](appkit/nsscrubberlayoutattributes/itemindex.md)