code: @Override
  	public void setStyleName(String styleName) {
  		super.setStyleName(styleName);
  		memberLayout.setStyleName(styleName + "Body");
  		titleLabel.setStyleName(styleName + "Title");
  		buttonBaseStyle = styleName.substring(0, styleName.length() - 5) + "Button";
  		for (RibbonColumn column : columns) {
  			column.setButtonBaseStyle(buttonBaseStyle);
  		}
  	}
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