Bug 142689 All the shadow colors can not be take effect.
All the background shadow colors can not be take effect. Steps: 1.Create a chart 2.Open chart builder, go to "Format Chart" tab, select "Chart Area", click "Title Format", set shadow color to red 3.Preview Actual Resutls: 1.Shadow color can not be displayed Expected Results: 1.Shadow color can be displayed
chart/org.eclipse.birt.chart.device.svg/src/org/eclipse/birt/chart/device/svg/SVGTextRenderer.java
* @return
	 */
	public synchronized static final SVGTextRenderer instance(
			SVGDisplayServer sxs )
	{
		if ( _tr == null )
		{
			_tr = new SVGTextRenderer( );
		}
		_tr._sxs = sxs;
		return _tr;
	}
	/**
	 * This method renders the 'shadow' at an offset from the text 'rotated
	 * rectangle' subsequently rendered.
	 * 
	 * @param ipr
	 * @param iLabelPosition
	 *            The position of the label w.r.t. the location specified by
	 *            'lo'
	 * @param lo
	 *            The location (specified as a 2d point) where the text is to be
	 *            rendered
	 * @param la
	 *            The chart model structure containing the encapsulated text
	 *            (and attributes) to be rendered
	 */
	public final void renderShadowAtLocation( IPrimitiveRenderer idr,
			int iLabelPosition, Location lo, Label la ) throws ChartException
	{