toggleHighlighted method

MyFloatPanelIconBtnCtrl toggleHighlighted()

toggle highlighted state

Implementation

MyFloatPanelIconBtnCtrl toggleHighlighted() {
  final set = MyFloatPanel.to.highlightedIds;
  if (set.contains(id)) {
    set.remove(id);
  } else {
    set.add(id);
  }
  return this;
}