How to change Waterfall Chart bar fill color. about anychart-android HOT 2 CLOSED

AnyChartView anyChartView = findViewById(R.id.any_chart_view);

Waterfall waterfall = AnyChart.waterfall();

List<DataEntry> data = new ArrayList<>();
data.add(new ValueDataEntry("Start", 23));
data.add(new ValueDataEntry("Jan", 22));
data.add(new ValueDataEntry("Feb", -46));
data.add(new ValueDataEntry("Mar", -91));
data.add(new ValueDataEntry("Apr", 37));
data.add(new ValueDataEntry("May", -21));
data.add(new ValueDataEntry("Jun", 53));
data.add(new ValueDataEntry("Jul", 31));
data.add(new ValueDataEntry("Aug", -15));
data.add(new ValueDataEntry("Sep", 42));
data.add(new ValueDataEntry("Oct", 53));
data.add(new ValueDataEntry("Nov", -15));
data.add(new ValueDataEntry("Dec", 51));
DataEntry end = new DataEntry();
end.setValue("x", "End");
end.setValue("isTotal", true);
data.add(end);

Set set = Set.instantiate();
set.data(data);

com.anychart.core.waterfall.series.Waterfall series = waterfall.waterfall(set, "");

series.normal().fill("#ff6666 0.3");
series.normal().hatchFill("forward-diagonal", "#ff6666", 0.5, 10);
series.normal().stroke("#ff6666");
series.hovered().fill("#ff6666 0.1");
series.hovered().hatchFill("forward-diagonal", "#ff6666", 0.5, 10);
series.hovered().stroke("#ff6666 2");
series.selected().fill("#ff6666", 0.5);
series.selected().hatchFill("forward-diagonal", "#ff6666", 0.5, 10);
series.selected().stroke("#ff6666 4");

series.normal().fallingFill("#00cc99", 0.3);
series.normal().fallingStroke("#00cc99", 1, "10 5", "round", "null");
series.hovered().fallingFill("#00cc99", 0.1);
series.hovered().fallingStroke("#00cc99", 2, "10 5", "round", "null");
series.selected().fallingFill("#00cc99", 0.5);
series.selected().fallingStroke("#00cc99", 4, "10 5", "round", "null");

series.normal().risingFill("#0066cc", 0.3);
series.normal().risingStroke("#0066cc");
series.hovered().risingFill("#0066cc", 0.1);
series.hovered().risingStroke("#0066cc 2");
series.selected().risingFill("#0066cc", 0.5);
series.selected().risingStroke("#0066cc 4");

waterfall.title("Waterfall Chart: Appearance");

anyChartView.setChart(waterfall);