How did Atari apply side art to Arcade Cabinets?

I saw the headline and immediately thought "silk screen"

We learned how to do it in 8th grade in shop class. The end result was a T-shirt or other item that we printed from the screens we made. We cut our screens manually with an Xacto knife, but also learned about photo emulsion screens.

One thing that I don’t think the article mentions is how many times a screen could be used?

Youtube is truly a treasure.

tl;dr: plain old silkscreen printing. Nothing revolutionary

TLDR the slop: screen printing directly onto the cabinet sides.

https://youtube.com/watch?v=lpY8gBAzF9U

(Video is embedded in the article.)