что такое настраиваемые переменные и грани в моем .emacs?

это в мой .emacs, могу я с ним связываться или нет?

(custom-set-variables
  ;; custom-set-variables was added by Custom.
  ;; If you edit it by hand, you could mess it up, so be careful.
  ;; Your init file should contain only one such instance.
  ;; If there is more than one, they won't work right.
 )
(custom-set-faces
  ;; custom-set-faces was added by Custom.
  ;; If you edit it by hand, you could mess it up, so be careful.
  ;; Your init file should contain only one such instance.
  ;; If there is more than one, they won't work right.
 '(better-fringes-bitmap ((t (:foreground "#00dd44"))))
 '(font-lock-string-face ((((class color) (min-colors 88) (background light)) (:foreground "#113355")))))

пока что я добавляю все, что хочу, над этими строками ...