Green antifreeze or coolant as some call it.

Bills65Dart said
Well, this might be a little confusing. The old green stuff that is called green is more like a mix of yellow and green, slime sort of ? (uff, was that bad language?) And the new yellow is more like a see through yellow, but with a green tint on it. So, it is easy to be confused. What I mean is that I would not be surprised if someone think the new yellow stuff is just a variety of the old green one.

Bill

Conventional should be pretty green when fresh. Selling stuff that is green but something else, or gold-green like old (used) anti-freeze makes it confusing for all of us.

Its why going by color alone is not a guarentee.
Lots of former industry standards are now followed only loosely. It's not just coolant manufactures.
Here's a chart that covers most of them, and what they usually are, or were supposed to be, kindof ...