---
title: effect
framework: developertoolssupport
role: symbol
role_heading: Type Property
path: developertoolssupport/libraryitem/category/effect
---

# effect

A category for effects, like opacity and saturation modifiers.

## Declaration

```swift
static let effect: LibraryItem.Category
```

## See Also

### Specifying a Category

- [control](developertoolssupport/libraryitem/category/control.md)
- [layout](developertoolssupport/libraryitem/category/layout.md)
- [other](developertoolssupport/libraryitem/category/other.md)