   This function is called at the very end of Spacemacs initialization after
   layers configuration. You are free to put any user code."
   ;;
-  (setq-default tab-width 4)
+  (setq-default tab-width 8)
   (setq-default fill-column 78)
   ;; Put a newline at the end of file if there isn't already one there
   (setq-default require-final-newline t)

  (setq org-ref-default-bibliography '("~/papers/references.bib")
        org-ref-pdf-directory "~/papers/"
        org-ref-bibliography-notes "~/papers/notes.org")
  ;;
  ;; ESS: Turn off the automatic replacement of `_' by `<-'
  (add-hook 'ess-mode-hook (lambda () (ess-toggle-underscore nil)))
  ;;
  ;; Set font only after the first GUI frame initialized, to workaround the
  ;; error when Emacs starts in daemon mode.
  (spacemacs|do-after-display-system-init

     markdown
     (mu4e :variables
           mu4e-enable-mode-line t
           mu4e-installation-path "~/local/mu/share/emacs/site-lisp/mu4e")
     octave
     org
     python
