Bug 145144 SVG Interactivity cannot highlight gradient colors
Create any SVG Chart with gradient colors on the series palette. Add interactivity on series to highlight them on mouseover for instance (or mouse click) The highlight doesn't work. It works for plain colors only.
chart/org.eclipse.birt.chart.device.svg/src/org/eclipse/birt/chart/device/svg/SVGGraphics2D.java
elem.setAttribute( "height", Double.toString( arg3 ) ); 
		return elem;
	}
	protected Element createRoundRect( double arg0, double arg1, double arg2,
			double arg3, double arg4, double arg5 )
	{
		Element elem = createElement( "rect" ); 
		elem.setAttribute( "x", Double.toString( arg0 ) ); 
		elem.setAttribute( "y", Double.toString( arg1 ) ); 
		elem.setAttribute( "width", Double.toString( arg2 ) ); 
		elem.setAttribute( "height", Double.toString( arg3 ) ); 
		elem.setAttribute( "rx", Double.toString( arg2 ) ); 
		elem.setAttribute( "ry", Double.toString( arg3 ) ); 
		return elem;
	}
	protected Element createOval( double arg0, double arg1, double arg2,
			double arg3 )
	{
		Element elem = createElement( "ellipse" ); 
		elem.setAttribute( "cx", Double.toString( arg0 ) ); 
		elem.setAttribute( "cy", Double.toString( arg1 ) ); 
		elem.setAttribute( "rx", Double.toString( arg2 ) ); 
		elem.setAttribute( "ry", Double.toString( arg3 ) ); 
		return elem;
	}
	protected Element createArc( double x, double y, double width,
			double height, double startAngle, double arcAngle )
	{
		Element elem = createElement( "path" ); 
		double startX = x * Math.cos( startAngle );