termtosvg

termtosvg is a Unix terminal recorder written in Python that renders your command line sessions as standalone SVG animations.

https://github.com/nbedos/termtosvg

https://nbedos.github.io/termtosvg/pages/templates.html

termtosvg t.svg -t window_frame -c bash -g 80x30

zsh 会有上一条命令的残影，所以录制时，用经典的 bash 好一些。