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/BubbleSeriesAttributeComposite.java
grpAccLine.setText( Messages.getString( "BubbleSeriesAttributeComposite.Lbl.AccLine" ) ); 
		liacAccLine = new LineAttributesComposite( grpAccLine,
				SWT.NONE,
				context,
				( (BubbleSeries) series ).getAccLineAttributes( ),
				true,
				true,
				true );
		GridData gdLIACAccLine = new GridData( GridData.FILL_BOTH );
		gdLIACAccLine.horizontalSpan = 2;
		liacAccLine.setLayoutData( gdLIACAccLine );
		liacAccLine.addListener( this );
		
		Composite cmpOrientation = new Composite( grpAccLine, SWT.NONE );
		{
			GridLayout gl = new GridLayout( 2, false );
			gl.marginHeight = 0;
			gl.marginBottom = 0;
			gl.verticalSpacing = 0;
			cmpOrientation.setLayout( gl );
			GridData gd = new GridData( GridData.FILL_HORIZONTAL );
			gd.horizontalSpan = 2;
			cmpOrientation.setLayoutData( gd );
		}
		
		lblOrientation = new Label( cmpOrientation, SWT.NONE );
		lblOrientation.setText( Messages.getString( "BubbleSeriesAttributeComposite.Lbl.Orientation" ) ); 
		cmbOrientation = new Combo( cmpOrientation, SWT.DROP_DOWN | SWT.READ_ONLY );
		GridData gdCMBOrientation = new GridData( GridData.FILL_HORIZONTAL );
		cmbOrientation.setLayoutData( gdCMBOrientation );