Nowadays, the retro jerseys in nba generally mean that players will wear the jerseys of the early history of the team on the retro night of the team. You can say that they are from the fifties and sixties, but they are not necessarily from the fifties and sixties, but they may also be the once brilliant styles of the team. The jerseys used the fonts and colors at that time.
What you said about McGrady Magic or Carter Raptors can only be said to be old jerseys, not retro. Even if you buy Jordan's or Magic's or Bird's jerseys now, some of them are for ordinary games and retro nights. You can't all say retro. ...
For example, the words on the chest of Jordan's ordinary jerseys are ordinary fonts, while the retro models are handwritten. ...