ML Face Maps UV Template?

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ML Face Maps can generate a UV map:

If you bring this into Action, you can use it as a UV map and it sticks Ok:

But if you wanted to use the UV map to stick some red dots on the face, what’s the UV map using as reference?
Through some trial and error, I put red on the eyes, nose, and lips:

So clearly Flame has some map in mind.
And no, it’s not MLHumanFaceTemplates, that looks like this:

So what unwrapped UV face template is Flame using under the hood?