Setting of MarkerStyle does NOT work!

Solution-1:
Start Slicer.exe from a terminal after “set SLICER_OPENGL_PROFILE=core”

Solution-2:
Go to system’s “Advanced System Settings”–> “Environment Variables”–>Make a new variable as “SLICER_OPENGL_PROFILE” and set its value as “core”; then run Slicer as normal.