   :ensure git-gutter)
 (global-git-gutter-mode +1)
 (git-gutter:linum-setup)
+(global-set-key (kbd "C-c <up>") 'git-gutter:previous-hunk)
+(global-set-key (kbd "C-c <down>") 'git-gutter:next-hunk)
 
 ;; Handy pop-up messages with git info.
 (use-package git-messenger

    (defun new-browser-tab ()
      "Open a new browser tab in the default browser."
      (interactive)
      (shell-command "open http://google.com")
      ))
 ((string-equal system-type "gnu/linux") ; Linux
    (defun new-browser-tab ()
      "Open a new browser tab in the default browser."

    (define-key m [f6] 'recompile)))

(add-hook 'prog-mode-hook 'ar/prog-mode-hook)

;; Set font face height. Value is 1/10pt.
(set-face-attribute 'default nil :height 180)
