renderer.setSeriesStroke(0, new BasicStroke(4f, BasicStroke.JOIN_ROUND, BasicStroke.JOIN_BEVEL));
renderer.setSeriesStroke(1, new BasicStroke(4f, BasicStroke.JOIN_ROUND, BasicStroke.JOIN_BEVEL));
plot.setRenderer(1, renderer);
ValueAxis rangeAxis = new NumberAxis(Messages.ProjectDiskUsage() + " (" + workspaceUnit + ")");
plot.setRangeAxis(1, rangeAxis);
plot.mapDatasetToRangeAxis(1, 1);
setColorForArea(plot.getRenderer(), dataset.getRowCount()>2);
plot.setDatasetRenderingOrder(DatasetRenderingOrder.FORWARD);
renderer.setSeriesPaint(1, new Color(255,204,0));
return chart;
}