Variable: tab-line-close-button-show
tab-line-close-button-show is a customizable variable defined in
tab-line.el.gz.
Value
t
Documentation
Defines where to show the close tab button.
If t, show the close tab button on all tabs.
If selected, show it only on the selected tab.
If non-selected, show it only on non-selected tab.
If nil, don't show it at all.
This variable was added, or its default value changed, in Emacs 27.1.
Source Code
;; Defined in /usr/src/emacs/lisp/tab-line.el.gz
(defcustom tab-line-close-button-show t
"Defines where to show the close tab button.
If t, show the close tab button on all tabs.
If `selected', show it only on the selected tab.
If `non-selected', show it only on non-selected tab.
If nil, don't show it at all."
:type '(choice (const :tag "On all tabs" t)
(const :tag "On selected tab" selected)
(const :tag "On non-selected tabs" non-selected)
(const :tag "None" nil))
:initialize 'custom-initialize-default
:set (lambda (sym val)
(set-default sym val)
(force-mode-line-update t))
:group 'tab-line
:version "27.1")