Chartjs-How to change point style legend to diamond in chart js 5 October 2023 by thecoderscamp.com 1👍 ✅ The pointStyle should be updated to rectRot instead of rect. Please read more about it here Updated JSFiddle Edit: For adding a '%' sign at the end of each tooltip label, add a tooltip callback as shown in the following JSFiddle Chartjs-Using Chart.js in functional React component, not allowing me to toggle data: "properties undefined" Source:stackexchange.com