void setBlackColor(Color blackColor) {
    Color oldValue = this.blackColor;
    if (blackColor == null) {
      blackColor = DEFAULT_BLACK_COLOR;
    }
    if (!oldValue.equals(blackColor)) {
      this.blackColor = blackColor;
      propertyChangeSupport.firePropertyChange(ATTR_BLACK_COLOR, oldValue, this.blackColor);
    }
  }
void setBlackColor(Color blackColor)