You can safely ignore the "VR" logo on the lens when evaluating a purchase – its colour is definitely purely cosmetic and tells you nothing about the lens itself. And the presence or absence of the "II" designation in a lens' title doesn't help identify the VR type either...
No, the safest way to determine which generation of VR is in a given lens is to check its product description on one of Nikon's websites. They are usually consistent in describing the capability of the lens' VR system as "up to 3 stops" for the original VR, "up to 4 stops" for VR II and now "up to 5 stops" for the VR III on the latest AF-S VR 70-200mm f/4G.
So, here is a list (as complete and accurate as I can make it, though I'll happily accept corrections...) of the generation of VR in each current (and discontinued) Nikkor lens. I hope it helps
NOTE TO HELP AVOID CONFUSION: where I've put (version I) or (version II) after a lens name, it is to distinguish the first or second version of the lens, not the VR system.