I'm trying to go full minimalist over here... But I can't figure out how to remove the strippled line next to "untitled". I'd like it to be nothing at all.

The customizations I've done so far for tabbar in my .emacs is under the image.

The strippled line does not appear when tabbar is uncustomized.
It appears when '(tabbar-background-color "color-237") is set.

enter image description here

;; Loads tabbar and customizations
(tabbar-mode 1)
(setq tabbar-use-images nil)
(setq tabbar-buffer-groups-function(lambda() (list "All Buffers")))
(defun buffer-groups()
  (list (cond ((string-equal "*" (substring (buffer-name) 0 1)) "emacs")
              ((eq major-mode 'dired-mode) "emacs") (t "user"))))
(setq tabbar-buffer-groups-function 'buffer-groups)

and some from customize-group:

'(tabbar-background-color "color-237")
'(tabbar-buffer-home-button (quote (("") "")))
'(tabbar-home-button (quote (("") "")))
'(tabbar-scroll-left-button (quote (("") "")))
'(tabbar-scroll-right-button (quote (("") "")))
'(tabbar-separator (quote (2)

'(tabbar-button ((t nil)))
'(tabbar-default ((t (:background "color-237" :foreground "color-250"))))
'(tabbar-highlight ((t nil)))
'(tabbar-modified ((t (:inherit tabbar-default :foreground "#87D700"))))
'(tabbar-selected ((t (:inherit tabbar-default :foreground "#1EE8FF"))))
'(tabbar-selected-modified ((t (:inherit tabbar-default :foreground "#1EE8FF"))))
'(tabbar-unselected ((t (:inherit tabbar-default))))
  • 1
    The default behavior of tabbar.el version 2.0 -- marmalade-repo.org/packages/tabbar -- does not generate a view as depicted in your picture. So, whatever you are doing, it is much different than the stock tabbar.el library. Please provide more details (code) and/or a link to whatever code you are using to create the header-line-format -- i.e., untitled --------------------.
    – lawlist
    Aug 23, 2016 at 19:57
  • This question risks being closed as unclear. You need to provide a lot more specifics about what you are doing. Provide a step-by-step recipe to reproduce the problem, starting with emacs -Q (no init file). Say what you see at each significant step, and what you expected to see instead.
    – Drew
    Aug 23, 2016 at 20:03
  • @lawlist added my customizations so far below the image :)
    – Ole
    Aug 23, 2016 at 20:53
  • Did a quick "when does the strippled line appear" by commenting out one by one customization. Seems like one "'(tabbar-background-color "color-237")" is set, the line appears.
    – Ole
    Aug 23, 2016 at 20:56
  • So you've resolved the issue, then -- just pick a valid color instead?
    – lawlist
    Aug 23, 2016 at 21:02

1 Answer 1


The value inside '(tabbar-background-color "color-237") was invalid.
Changed it to '(tabbar-background-color "#3A3A3A") - and it worked.

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