This Emacs package provides a minor mode which configures Magit to use delta when displaying diffs.

1. Install delta.
2. Install magit-delta from MELPA.

3. Use M-x magit-delta-mode to toggle between using delta, and normal magit behavior. To activate it automatically:

   (add-hook 'magit-mode-hook (lambda () (magit-delta-mode +1)))

   Or with use-package

   (use-package magit-delta
     :hook (magit-mode . magit-delta-mode))

If you run emacs as a terminal application (emacs -nw) and colors are not being rendered correctly, then follow the instructions here: https://www.gnu.org/software/emacs/manual/html_node/efaq/Colors-on-a-TTY.html.

Credit

• magit
• xterm-color