A newbe question. Have searched many places and cannot find out what the green icon (by one of my machine IP addresses) means when it becomes green and red. THANKS.
For workstations, it looks like the Green, screen-only icons are XP machines; the Blue, tower+screen icons are Windows 7; and the Blue, screen-only icons are Windows 10. So I presume it's based on Windows version (5 vs. 6 vs. 10).