getIconImageCrossFade method
Controls the transition progress between the image variants of icon-image. Zero means the first variant is used, one is the second, and in between they are blended together. . Both images should be the same size and have the same type (either raster or vector). Default value: 0. Value range: 0, 1
Implementation
Future<double?> getIconImageCrossFade() =>
_annotationMessenger.getIconImageCrossFade(id);