"animated" battery icon

Just a thought that it would be nice if the battery icon itself would change to match actual state of the battery (an image with a full battery when full and an empty battery when empty and anything in between).
I don’t know if there is anyway of knowing if it is actually charging, but if so, there could be even a nice real animation in the part of the battery that is shown as empty.

Totally agree. I would appreciate to see if it is charging or discharging.