$ chalk --help

  Usage
    $ chalk <style> ... <string>
    $ echo <string> | chalk <style> ...

  Options
    --template, -t    Style template. The `~` character negates the style.
    --stdin           Read input from stdin rather than from arguments.
    --no-newline, -n  Don't emit a newline (`\n`) after the input.
    --demo            Demo of all Chalk styles.

  Examples
    $ chalk red bold 'Unicorns & Rainbows'
    $ chalk -t '{red.bold Unicorns & Rainbows}'
    $ chalk -t '{red.bold Dungeons and Dragons {~bold.blue (with added fairies)}}'
    $ echo 'Unicorns from stdin' | chalk --stdin red bold