Hi Matt,
Thanks for using Syncfusion Products.
I am not able to reproduce this issue which you have mentioned in the previous update.
Please have a look at the attached sample.
http://websamples.syncfusion.com/samples/Chart.Windows/F62962/main.htmThe above sample which illustrates how to change the color of the points using PrepareStyle Event.
Please let me know if this helps.
Thanks and Regards,
Rashidha.