---
title: blendMode
framework: mapkit
role: symbol
role_heading: Instance Property
path: mapkit/mkoverlayrenderer/blendmode
---

# blendMode

The blend mode to apply to the overlay.

## Declaration

```swift
var blendMode: CGBlendMode { get set }
```

## Discussion

Discussion Choose the blend mode from one of the possible CGBlendMode enumerations.

## See Also

### Attributes of the overlay

- [overlay](mapkit/mkoverlayrenderer/overlay.md)
- [alpha](mapkit/mkoverlayrenderer/alpha.md)
- [contentScaleFactor](mapkit/mkoverlayrenderer/contentscalefactor.md)