Yes adlabs.. and you cannot keep the cabin lights on by using the landing lights because the main gear lightbeam breaks through the fuselage when it is retracted.
Thanks for your nice comments on the skins itself!!
I'll go on and try further saving in different modes. I just realized the whole file turns black when saved as dxt1 with alpha

both channels just pitch black..
I REALLY WANT those neat looking windows when cruising in the darkness.. makes a great difference in screenshots