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JFreeChart: how to change XYPlot foreground color?

The JFreeChart XYPlot background color is changed using setBackgroundPaint() but there doesn't seem to be a corresponding setForegroundPaint() .

XYPlot plot = (XYPlot) chart.getPlot();
plot.setBackgroundPaint(Color.BLACK);

How is the foreground color (the plot) changed?

eg:

XYItemRenderer renderer = plot.getRenderer();
renderer.setSeriesPaint(0, Color.CYAN);

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