Color Cycle time graph by estimation

[rynr]

I'd like to see, how good our estimations are. So, it would be great to see in the Cycle time plot, how each story was estimated.

For us, we use numbers, I assume Jira could have any kind of estimations. My thought would be to get a list of all estimations (probably not more than 10), define a color per estimate and color the dots accordingly.