"Supercharging savings" calculation should use Supercharging cost/kwh - not home charging cost/kwh

In the Charge summary - when you have free supercharging with your car -  "Supercharging savings" is currently calculated using the price you have set in  "Home charging cost/kwh".

It would be better if the Supercharging savings would be calculated on the basis of the Supercharging price/kwh, since this is my actual saving at the supercharger while being on the road. There is no relation wiht the Home charging cost/kwh.

So, as a consequence, my current supercharging savings are substantially undervalued, since the price/kwh is surely higher at the Supercharger than at home.

In my opinion - this should be changed.