Bug 417317 Error when running chart example SwingInteractivityViewer.java.
chart/org.eclipse.birt.chart.engine/src/org/eclipse/birt/chart/render/InteractiveRenderer.java
hideFill( list.get( i ) );
			}
		}
	}
	private void highlight( PrimitiveRenderEvent event )
	{
		Fill fill = event.getBackground( );
		if ( fill != null )
		{
			highlightFill( fill );
		}
		LineAttributes lineAttributes = event.getLineAttributes( );
		if ( lineAttributes != null )
			highlightLine( lineAttributes );
		Label label = event.getLabel( );
		if ( label != null )
			highlightLabel( label );
	}
	private void highlightLabel( Label label )
	{
		saveLabel( label );
		ColorDefinition color = label.getCaption( ).getColor( );
		if ( color != null )
			color.brighter( );
	}
	private void highlightLine( LineAttributes la )
	{
		saveLine( la );
		
		ColorDefinition color = la.getColor( );