The article wasn't about adding ASCII art, only about allowing the default panic handler to print the output correctly when the application uses raw mode in the

The article wasn't about adding ASCII art, only about allowing the default panic handler to print the output correctly when the application uses raw mode in the terminal. It is a good introduction to what registering a panic handler looks like, no more than that. If you want colored backtraces, you can look at https://crates.io/crates/color-backtrace https://crates.io/crates/color-backtrace, https://crates.io/crates/better-panic https://crates.io/crates/better-panic or https://crates.io/crates/color-eyre https://crates.io/crates/color-eyre, which leverage the same machinery shown in the article.