Is your feature request related to a problem? Please describe.
The current label used in the gauge/goal/bullet graph is hard coded with the value Actual.
This doesn't follow the other chart behaviors and needs to be configurable.

Describe the solution you'd like
Using the id, or the name or one of the other available label in the configuration

Describe alternatives you've considered
Don't show a label is also an alternative, all the information are anyway already available on the screen.