Enhancement to Software Tracker Stacked Bar Chart

Thanks for the new Software Tracker Stacked Bar Chart, it's a nice addition. When you hover over it you see the total number of contributing vehicles which is only a duplicate of what is shown at the top of the un-hovered chart. It would be nice to show (while hovering) what percentage of each model is at that version. For example for a Model Y owner it would be helpful to see that only 8% of the Y's have gotten that particular update.