Variable: gnus-tree-mode-line-format
gnus-tree-mode-line-format is a customizable variable defined in
gnus-salt.el.gz.
Value
"Gnus: %%b %S %Z"
Documentation
The format specification for the tree mode line.
Source Code
;; Defined in /usr/src/emacs/lisp/gnus/gnus-salt.el.gz
(defcustom gnus-tree-mode-line-format "Gnus: %%b %S %Z"
"The format specification for the tree mode line."
:type 'string
:group 'gnus-summary-tree)