flashing end point

[sergejbuneev]

Good day! I'm trying to customize the end point and make light flashing animate with it. Could you please advice how to adjust it.
Below is a short video of how I expect to make its looks like

1.mp4

[Emelya99]

It would also be interesting to know how to make a custom circle for priceMark.last instead of a line. How can this be implemented?
Thank you!)

[liihuu]

Yeah, that's a good idea.