+(defun notmuch-show-toggle-thread-indentation ()
+ "Toggle the indentation of threads."
+ (interactive)
+ (setq notmuch-show-indent-content (not notmuch-show-indent-content))
+ (message (if notmuch-show-indent-content
+ "Content is indented."
+ "Content is not indented."))
+ (notmuch-show-refresh-view))
+