The weird yellow light is the result of a bug. The DBE used to have yellow panels and screens but an update turned them blue while the light emanating from them remained yellow.
Even weirder is how the DBS now has an identical cockpit as the DBE, except the DBS has blue panels and screens with the correct light coming from them.
Even weirder is how the DBS now has an identical cockpit as the DBE, except the DBS has blue panels and screens with the correct light coming from them.