Same idea here, each flower or bud is a marker (this is a composite of 4 separate closeup pix). The neck has side markers, too, which is what I use for reference when I play this guitar.My partscaster neck is similar to the Vai.
The larger leaves are the markers.
View attachment 1405893
GallagherLarrivee?
The PRS birds in flight.
And no, I don't feel the slightest bit of shame over it.