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Screen Dimming

The Screen Dimming feature darkens the entire screen except for a region around your cursor. This draws your audience’s eye exactly where you want it, perfect for highlighting specific UI elements, text, or controls during a presentation.

When enabled, a semi-transparent dark overlay covers the screen. A cutout region (the “clear zone”) follows your cursor, revealing the content underneath at full brightness.

Controls the radius of the clear zone around the cursor, in pixels.

  • Default: 100 px
  • Smaller values (40–80 px) create a tight spotlight effect
  • Larger values (150–300 px) reveal more content around the cursor

The clear zone around the cursor can take different shapes:

Shape Description
Circle Round cutout centered on the cursor (default)
Rectangle Rectangular cutout for wider content areas
Rounded Rectangle Rectangle with soft rounded corners; corner radius is configurable

When Rounded Rectangle is selected, an additional Corner Radius setting (0–100%) controls how rounded the corners are.

Controls how the cutout tracks the cursor.

  • 0: Instant. The cutout snaps exactly to the cursor with no delay.
  • 1–20: Smooth follow. The cutout lags slightly behind the cursor, creating a fluid trailing motion.

A value of 0 is best for most use cases. Higher values (5–10) can look more cinematic in slow, deliberate presentations.

Controls the gradient at the boundary between the dimmed and clear areas.

  • Sharp: hard edge, like a hole cut in the overlay
  • Soft: gradual fade, creating a vignette-like effect
  • Range: 0–50 (higher values produce a softer transition)

A softer edge looks more natural and less jarring; a sharp edge provides a clearer boundary.

The color of the soft-edge gradient around the cutout. This is usually left at black to blend into the overall dimming overlay, but can be set to any color for a colored vignette effect.

  • Default: Black

Set how dark the overlay is.

  • Lower values (20–40%): subtle dimming, content still partially visible
  • Higher values (60–90%): dramatic darkening, strong focus effect

The activation shortcut can run in Toggle mode (press to flip on/off, default) or Hold mode (active only while held). Switch via the ComboBox next to the shortcut.

See Activation Mode for details.

When you toggle Screen Dimming on or off, the overlay can transition smoothly:

  • Fade duration: how long the transition takes (in milliseconds)
  • A longer fade feels more cinematic; instant toggle is more responsive
Scenario Shape Softness Opacity
Live presentation Circle Soft 60%
Screen recording Rectangle Medium 50%
Maximum focus Circle Sharp 80%