Bug 192797 The pyramid chart highlight is error[0602]
Description: The pyramid chart highlight is error[0602] Create a sample pyramid chart and see the attached screen shot.
chart/org.eclipse.birt.chart.engine/src/org/eclipse/birt/chart/render/BaseRenderer.java
{
				pre.setDepth( -dSeriesThickness );
			}
			else
			
			{
				pre.setDepth( 0 );
			}
			if ( i == nSides )
			{
				fP = f;
			}
			else if ( i == iSmallestYIndex )
			{
				fP = fBrighter;
			}
			else
			{
				fP = fDarker;
			}
			pre.setBackground( fP );
			if ( bDeferred )
			{
				alModel.add( pre.copy( ) );
			}
			else
			{
				ipr.fillPolygon( pre );
			}
			if ( i == nSides )