In version 5.5 the color series used for html charts could be changed by modifiying jasperserver-pro/scripts/adhoc/highchart.datamapper.js . Version 5.6 uses optimized scripts now, but even with a modified jasperserver-pro/optimized-scripts/adhoc/chart/highchart.datamapper.js this has not the desired effect of setting alternate colors for my charts. Where/how should I set my preferred color series for the adhoc charts?