Function: tab-bar-tab-group-format-default
tab-bar-tab-group-format-default is a byte-compiled function defined
in tab-bar.el.gz.
Signature
(tab-bar-tab-group-format-default TAB I)
Source Code
;; Defined in /usr/src/emacs/lisp/tab-bar.el.gz
(defun tab-bar-tab-group-format-default (tab i)
(propertize
(concat (if tab-bar-tab-hints (format "%d " i) "")
(funcall tab-bar-tab-group-function tab))
'face 'tab-bar-tab-group-inactive))