icon
  The opacity at which the icon will be drawn.
Use static method SymbolLayer.defaultIconOpacity to set the default property.
Parameters
icon
value of iconOpacity
The opacity at which the icon will be drawn.
Use static method SymbolLayer.defaultIconOpacityAsExpression to set the default property.
Parameters
icon
value of iconOpacity as Expression
The opacity at which the icon will be drawn.