icon
  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.
Parameters
icon
value of iconImageCrossFade
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.
Parameters
icon
value of iconImageCrossFade as Expression