Icon change on state

[Chreece]

Is your feature request related to a problem? Please describe.

The icon of the binary sensor is the same for every state.
If you have a budge in Lovelace you can't clearly recognize if it is on or off.

Describe the solution you'd like

Change the icon based on state. i.e. use: mdi:car-off if the sensor is off

Describe alternatives you've considered

Additional context

[metbril]

The car-off icon does not have the rain at the top. The current way to show this in the UI is to use change of color. In an entities card you can set a toggle to 'on' for this. And the tile card has this behaviour by default.