---
title: iconTemplateImageData
framework: callkit
role: symbol
role_heading: Instance Property
path: callkit/cxproviderconfiguration/icontemplateimagedata
---

# iconTemplateImageData

The PNG data for the icon image to be displayed for the provider.

## Declaration

```swift
var iconTemplateImageData: Data? { get set }
```

## Discussion

Discussion The icon image should be a square with side length of 40 points. The alpha channel of the image is used to create a white image mask, which is used in the system native in-call UI for the button which takes the user from this system UI to the 3rd-party app.

## See Also

### Configuring Native Call UI

- [localizedName](callkit/cxproviderconfiguration/localizedname.md)
- [ringtoneSound](callkit/cxproviderconfiguration/ringtonesound.md)