What's old is new again. This takes me back thirty-odd years to some ASCII drawing program I used to use in DOS. I can't recall if it was somehow part of WordPerfect or its own thing.

Perhaps it was TheDraw? Which has been reincarnated now as Durdraw: https://durdraw.org/

maybe a much earlier version. There were no animations, and this was before color was widespread.

I remember being able to "draw" these types of boxes/shapes in Turbo Pascal.