This setting controls the shape of the code coverage markers shown inline by NCrunch.
This setting is entirely cosmetic and has no impact on the actual function of the underlying engine.
Choose a coverage marker style that suits your preference and gives you the level of inline intrusion you feel most comfortable with.
The Vertical Line and Small Circle are the least obstructive shapes, while the Circle and Rectangle shapes will give better inline visibility of coverage and performance information.
This setting can be used in combination with the Marker colour settings to customise the coverage markers.