Turn on the Dark Screen mode using gestures
When you turn on the BlackBerry Screen Reader you use gestures to complete tasks.
User Guide
Settings
199
1.
When you have the BlackBerry Screen Reader turned on, swipe down and to the right with one finger to access Quick
Tasks mode.
2.
Tap with two fingers to turn on or turn off Dark Screen Mode.
After 3 seconds, your device exits Quick Tasks Mode.