General Preferences: Blinking

When tracing, the last point placed is typically highlighted with a blinking marker.

Use this tab to set the shape, size, and speed.

A slow blinking marker may be hard to locate, but it doesn't obscure structures on the screen.
The blinking speed of a wheel-shaped marker may be increased without significantly affecting image clarity, but the exact position of the previously traced point may not be as clear.

none
circle
cross hair
Wheel: rotates around last point clicked.
Circuit: rotates around last point clicked.

The radius of the current position marker in pixels, independent of the lens.

The blinking rate is adjusted by moving the slider from slow to fast.

A slow blink translates into a relatively long appearance followed by an equally long disappearance.