---
title: chromaField
framework: corevideo
role: symbol
role_heading: Type Property
path: corevideo/cvimagebufferattachmentkeydefinitions/chromafield
---

# chromaField

The chroma field information for the image buffer.

## Declaration

```swift
static var chromaField: CVAttachmentCompositeKeyDefinition<Self.ShouldPropagate, CVImageChromaField> { get }
```