New: Stream Deck support
Control GammaBoost+ from an Elgato Stream Deck: turn it on and off, put a preset on screen, switch profiles and monitors, and step gamma, brightness, contrast and more. On a Stream Deck+ you can turn a dial to fine-tune.
Keys that show what's on screen: On / Off lights up in your preset's color and shows its name, preset and profile keys light up while they're in use, and the Monitor key shows which display presets go to.
Set up in Settings → Stream Deck: install the GammaBoost+ plugin in one click (Stream Deck asks you to confirm), turn on Control from Stream Deck, then drag GammaBoost+ actions onto your keys.
Private by design: it's off until you turn it on, and only apps on your PC can connect.
Needs the Stream Deck app 7.1 or later.
Fixes
Closing GammaBoost+ from outside works properly: when Task Manager or another app asked GammaBoost+ to close while it was in the tray, it could keep running and lose its in-game preset pop-up. It now quits and puts your screen back.
Close to tray off: closing the window now quits GammaBoost+, instead of leaving it running in the tray.