iconTemplateImageData
The PNG data for the icon image to be displayed for the provider.
Declaration
var iconTemplateImageData: Data? { get set }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.