Bug 315366 "Auto" for Curve Fitting Line is not black but transparent
Description: "Auto" for Curve Fitting Line is not black but transparent. Build number: 2.6.0.v20100602-0949 Steps to reproduce: 1. New a chart, in Format Chart->Series->Value (Y) Series, tick "Shown Curve Fitting Line", click "Curve Fitting Line" button. 2. Select "Auto" for Color. Expected result: The line is shown with color black. Actual result: The line disappears. Error log: N/A
chart/org.eclipse.birt.chart.ui.extension/src/org/eclipse/birt/chart/ui/swt/series/PieSeriesAttributeComposite.java
btnBuilder.setLayoutData( gdBTNBuilder );
			btnBuilder.setImage( UIHelper.getImage( "icons/obj16/expressionbuilder.gif" ) ); 
			btnBuilder.addSelectionListener( this );
			btnBuilder.setToolTipText( Messages.getString( "DataDefinitionComposite.Tooltip.InvokeExpressionBuilder" ) ); 
			btnBuilder.getImage( ).setBackground( btnBuilder.getBackground( ) );
			if ( context.getUIServiceProvider( ) == null )
			{
				btnBuilder.setEnabled( false );
			}
		}
		lblExpDistance = new Label( grpSlice, SWT.NONE );
		{
			lblExpDistance.setText( Messages.getString( "PieBottomAreaComponent.Label.ByDistance" ) ); 
			lblExpDistance.setToolTipText( TOOLTIP_EXPLOSION_DISTANCE );
		}
		iscExplosion = new Spinner( grpSlice, SWT.BORDER );
		{
			GridData gdISCExplosion = new GridData( GridData.FILL_HORIZONTAL );
			gdISCExplosion.horizontalSpan = 2;
			iscExplosion.setLayoutData( gdISCExplosion );
			iscExplosion.setMinimum( 0 );
			iscExplosion.setMaximum( 100 );
			iscExplosion.setSelection( series.getExplosion( ) );
			iscExplosion.addSelectionListener( this );
		}
		
		
		Label lblSliceOutline = new Label( grpSlice, SWT.NONE );
		GridData gdLBLSliceOutline = new GridData( );
		lblSliceOutline.setLayoutData( gdLBLSliceOutline );