Variable: speedbar-indentation-width
speedbar-indentation-width is a customizable variable defined in
speedbar.el.gz.
Value
2
Documentation
When sub-nodes are expanded, the number of spaces used for indentation.
Source Code
;; Defined in /usr/src/emacs/lisp/speedbar.el.gz
(defcustom speedbar-indentation-width 1
"When sub-nodes are expanded, the number of spaces used for indentation."
:group 'speedbar
:type 'integer)