Bug 190058 icon for aggregation type data items.
For aggregation type data items in cross tabs, we should show the icon instead of the sigma symbol. I am attaching the icon to replace it
UI/org.eclipse.birt.report.designer.ui/src/org/eclipse/birt/report/designer/internal/ui/editors/schematic/figures/LabelFigure.java
*            The verticalAlign to set.
	 */
	public void setVerticalAlign(String verticalAlign) {
		label.setVerticalAlign(verticalAlign);
	}
	/**
	 * Sets the toolTip text for this figure.
	 * 
	 * @param toolTip
	 */
	public void setToolTipText(String toolTip) {
		if (toolTip != null) {
			LabelFigure tooltip = new LabelFigure();
			tooltip.setText(toolTip);
			tooltip.setBorder(new MarginBorder(0, 2, 0, 2));
			setToolTip(tooltip);
		} else {
			setToolTip(null);
		}
	}
	/*
	 * (non-Javadoc)
	 * 
	 * @see org.eclipse.draw2d.Figure#setFont(org.eclipse.swt.graphics.Font)
	 */
	public void setFont(Font f) {
		super.setFont(f);
		label.setFont(f);
	}
}