copyWith method

IconThemeData copyWith ({Color color, double opacity, double size })

Creates a copy of this icon theme but with the given fields replaced with the new values.

Implementation 

IconThemeData copyWith({Color color, double opacity, double size}) {
  return IconThemeData(
    color: color ?? this.color,
    opacity: opacity ?? this.opacity,
    size: size ?? this.size,
  );
}