My 2014 30 DS switches are not back lit I do alot of night driving and it's a pain not being able to see the fog light switch so I installed mini led light strip that I can toggle on and off.
I've also used a USB gooseneck lamp, but I've noticed that any direct light source causes reflection in the cockpit.
I have a 2013 FR3, and the switches were not lit originally, but I put it in as a warranty repair with the dealer and all were fixed to illuminate when the lights are turned on.