marker.setOutlinePaint(Color.cyan);
marker.setAlpha(0.1f);
marker.setLabelAnchor(RectangleAnchor.TOP);
marker.setLabelTextAnchor(TextAnchor.TOP_CENTER);
marker.setLabelOffsetType(LengthAdjustmentType.CONTRACT);
categoryPlot.addDomainMarker(marker, Layer.BACKGROUND);
}
renderer.setDrawBarOutline(false);
renderer.setShadowVisible(false);
renderer.setItemMargin(.1);
renderer.setBarPainter(new StandardBarPainter());