Apache POI Line Chart colors

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It works for me. Groovy, PieChart, random colors.

def ctChart = chart.getCTChart()
def ctPieChart = ctChart.getPlotArea().addNewPieChart()
def ctPieSer = ctPieChart.addNewSer()

byte[] b = new byte[3];

(0 .. rows).each {
  random.nextBytes(b)
  def x = ctPieSer.addNewDPt()
  x.addNewIdx().setVal(it)
  x.addNewBubble3D().setVal(false)
  x.addNewSpPr().addNewSolidFill().addNewSrgbClr().setVal(b)
}

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