All good findings, @joni80!
I have added them to our bug tracker. The window heat thing is definitely reversed. The turnoff lights are asymmetrical, we will probably remove the second source on the left.
For the cabin lighting I am not sure, there are more options available on the panel at 1L than just "off and on", so if a user sets the lights to "dim", what should the state of the "cabin crew" GUI checkbox be? It isn´t really "fully on", but it isn´t "off", either.
However, if a lighting system is completely off, the checkbox should probably reflect that, same for fully on. We will see how to handle this.
Thanks for the report again!