Customize Traffic Lights' Conditional Formatting with Apache POI

I read this related question and customized the values of the traffic lights.

> The IconMultiStateFormatting has following thresholds per default:
>
> * If the cell value is greater than or equal 66% of all the values in the range, then green.
> * If the cell value is lower but greater than or equal 33% of all the values in the range, then yellow.
> * If the cell value is lower than 33% of all the values in the range, then red.

What I need is to swap red and green lights (red to large amounts and green to lower values) Is that possible?

Currently, this is my code:

SheetConditionalFormatting sheetCF = currentSheet.getSheetConditionalFormatting()
ConditionalFormattingRule rule = sheetCF.createConditionalFormattingRule(IconMultiStateFormatting.IconSet.GYR_3_TRAFFIC_LIGHTS)
rule.getMultiStateFormatting().setIconOnly(false)
ConditionalFormattingThreshold[] thresholds = rule.getMultiStateFormatting().getThresholds()
if (thresholds.length == 3) {
    (0..2).each { i ->
        ConditionalFormattingThreshold threshold = thresholds[i]
        println("-------------------- $i : ${threshold.getRangeType()}")   // 4 - percent
        println("-------------------- $i : ${threshold.getValue()}")
        println("-------------------- $i : ${threshold.getFormula()}")     // null
        threshold.setRangeType(ConditionalFormattingThreshold.RangeType.PERCENT)
        switch (i) {
            case 0:  // RED LIGHT
                threshold.setValue(50.0)
                break
            case 1:  // YELLOW LIGHT
                threshold.setValue(20.0)
                break
            case 2:  // GREEN LIGHT
                threshold.setValue(0.0)
                break
        }
    }
}
ConditionalFormattingRule [] cfRules = [ rule ]
CellRangeAddress [] regions = [ CellRangeAddress.valueOf("F2:F$lastRow") ]
sheetCF.addConditionalFormatting(regions, cfRules)

In this code above I'd pretended get green <= 20%; yellow 20%-50%; red > 50%.

How would you set this in Excel? The only way I see is using a reversed icon order. IconMultiStateFormatting provides this too.

Complete example:

import org.apache.poi.xssf.usermodel.XSSFWorkbook;
import org.apache.poi.ss.usermodel.*;
import org.apache.poi.ss.util.CellRangeAddress;
import java.io.FileOutputStream;
class ConditionalFormattingIconSet {
public static void main(String[] args) throws Exception {
Workbook workbook = new XSSFWorkbook();
Sheet sheet = workbook.createSheet("Sheet1");
CellStyle cellStyle = workbook.createCellStyle();
cellStyle.setAlignment(HorizontalAlignment.CENTER); 
cellStyle.setVerticalAlignment(VerticalAlignment.CENTER); 
Cell cell = null;
for (int r = 0; r < 10; r++) {
cell = sheet.createRow(r).createCell(0);
cell.setCellValue(r+1);
cell.setCellStyle(cellStyle);
}
SheetConditionalFormatting sheetCF = sheet.getSheetConditionalFormatting();
ConditionalFormattingRule rule = sheetCF.createConditionalFormattingRule(IconMultiStateFormatting.IconSet.GYR_3_TRAFFIC_LIGHTS);
//rule.getMultiStateFormatting().setIconOnly(true);
IconMultiStateFormatting iconMultiStateFormatting = rule.getMultiStateFormatting();
ConditionalFormattingThreshold[] thresholds = iconMultiStateFormatting.getThresholds();
if (thresholds.length == 3) {
for (int i = 0; i < 3; i++) {
ConditionalFormattingThreshold threshold = thresholds[i];
System.out.println(i + " : " + threshold.getRangeType()); // default 
System.out.println(i + " : " + threshold.getValue()); // default
// default = green if >= 66%; yellow if < 66% and >= 33%, red if < 33%
// changing the thresholds to green if >= 50%; yellow if < 50% and >= 20%, red if < 20%
if (i == 0) {
threshold.setValue(0d);
} else if (i == 1) {
threshold.setValue(20d);
} else if (i == 2) {
threshold.setValue(50d);
}
}  
// set reversed icon order since you wants red if >= 50%; yellow if < 50% and >= 20%, green if < 20%
iconMultiStateFormatting.setReversed(true);
}
ConditionalFormattingRule [] cfRules = {rule};
CellRangeAddress[] regions = {CellRangeAddress.valueOf("A1:A10")};
sheetCF.addConditionalFormatting(regions, cfRules);
FileOutputStream fileOut = new FileOutputStream("ConditionalFormattingIconSet.xlsx");
workbook.write(fileOut);
fileOut.close();
}
}