Gotcha RAF making money on the side by ripping of Brits going on holiday.
The shareholders of Rolls Royce, Thales, Cobbam, Babcock and Airbus make the money on the side, the RAF don’t! Air Tanker make a profit just from the RAF aircraft, the 3rd party leased aircraft is pretty much all profit.
The 3rd party G registered leased aircraft are in whatever livery and cabin fit the company (jet2) etc want. Obviously the RAF ones on the MAR are in military colours as you would expect.