[Veen]

I had no idea that alt + Touch Bar opens the display preferences or the sound preferences. Quite a useful tip!

[mh-]

(fyi to those of us holdouts..)

On the older ones with real keys it does the same thing:

alt+volume => opens sound prefs

alt+brightness => display prefs

alt+mission control => ..

alt+keyboard backlight => keyboard

also, unrelated but occasionally useful.. alt+shift allows you to adjust volume/brightness in fractional increments.