That was super cool! They really get all the details.

At first I couldn't figure out how to zoom in. I pressed all they keys. Then I accidentally moved the mouse over the window and it zoomed in.

So my first thought was, "how the heck do they capture the mouse in the terminal!".

Then I exited out of it by killing telnet, and noticed that my terminal was still capturing my mouse input! Just moving the mouse over the terminal put ASCII codes on the command line.

What is this sorcery?

That is really neat, thanks for the share. I am amazed at how much detail they managed to include as you zoom in.