3. Lights Out Mode Focuses on the Image
Sometimes, I want to focus on the images I’m working with—not the Lightroom interface. That’s where Lights Out mode comes into play.
To enter Lights Out mode, press the L key on your keyboard in the Library module. The area around the image dims, and your image looks nice and clean. Tap it again to totally black out the area around the image. Pressing L a third time resets the view.
Press the L key on your keyboard once to dim the area around your image. Pressing it a second time will totally black out the interface, and press it once more to return to normal view.
Lights Out mode works great in single image view or in grid view. The key here is dimming the interface to temporarily focus on an image.