The hybrid animation logic tweaks from ICS in flutter-ics-homescreen commit dda6c850 do not work well in practice with vehicle engine + speed signal data from e.g. our simple-can-simulator.py script.  One issue is that our simulation (and likely real) data does not have the engine speed go to zero when idling, which results in the charging state never triggering in the animation.  This issue will track improvements to that logic and the hybrid animation in general.