2) BackColor is used to color bars according to some rule.
3) The rule kicks in on the last (current) bar.
4) The complete area to the right of the bar is colored as well.
The free area to the right of the chart flashes madly if the rule for coloring is continuously activated and deactivated. I hope this isn't by design and that you can change it to only color the background of the bar.
I've attached a small snippet showing the problem, BackColor being set to dark gray.
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