Color should be turn off automatically if the output is not a terminal device

[xuchunyang]

The color becomes annoying and unwanted when outputs to pipe

~ $ tldr ls | less

or Emacs

(shell-command-to-string "tldr ls")

Some programs such as ls provide --color=auto|never|always

[dbrgn]

👍

Note that if your goal is using a pager to view the pages, you can also set the use_pager config variable.

[Delapouite]

Some programs such as ls provide --color=auto|never|always

Here are more details about different approaches https://no-color.org/