Hi,
when change color of series using brush, Tooltip keep with default color of series
please, find the following image:
Thank you for posting on our forums.
I recommend using a TooltipTemplate to create a custom tooltip which can be used to set its text and style, including the color. I have attached a sample which demonstrated how you can achieve this.
Please review the sample and let me know if you have further questions.
Thank you it is working fine