Cannot update panes in gauge chart #6089
I did some research and found that chart.update with pane is currently not implemented. I agree it is a bug.
This is how far I got.
The problem now is with the background, which is implemented as a plot band on the pane's first axis. This is a problematic design, especially when it comes to adding, updating and removing, and even on exporting as we have seen before. It is probably not too hard to finish the gist to fix the issue, but we should also consider a different binding between panes and axes.
… decoupled from Axis. Preparing fix for #6089.