Just after a bit of confirmation before reporting.
In PCB Editor
Top LH icon in 5.1.12 states “Grid on or off” and does just that.
Top LH icon in 6.0 states “Display dots or lines” but turns grid on or off.
I’m using Linux Mint but would like others with different OS to check behavior please.
Application: KiCad PCB Editor
It’s an grid on/off-button.
I read the tooltip-string as:
Display (grid dots or lines) in the edit window
and not as
Display (grid dots) OR (lines) in the edit window
But I recognize that this could led to misunderstandings.
The switch between dots/lines is located at:
preferences–>PCB-editor–>display-options–>Grid-options–> Grid style