Variable: tab-bar-tab-name-truncated-max
tab-bar-tab-name-truncated-max is a customizable variable defined in
tab-bar.el.gz.
Value
20
Documentation
Maximum length of the tab name from the current buffer.
Effective when tab-bar-tab-name-function is customized
to tab-bar-tab-name-truncated.
This variable was added, or its default value changed, in Emacs 27.1.
Source Code
;; Defined in /usr/src/emacs/lisp/tab-bar.el.gz
(defcustom tab-bar-tab-name-truncated-max 20
"Maximum length of the tab name from the current buffer.
Effective when `tab-bar-tab-name-function' is customized
to `tab-bar-tab-name-truncated'."
:type 'integer
:group 'tab-bar
:version "27.1")