Add an update function

center-content.el

@@ -127,6 +127,13 @@
   ;; Restore the original mode-line-format
   (setq mode-line-format center-content--original-mode-line-format))
 
+(defun center-content-update ()
+  "Updates the centering if `center-content-mode' is enabled."
+  (interactive)
+  (when (bound-and-true-p center-content-mode)
+    (center-content--disable)
+    (center-content--enable)))
+
 ;;;###autoload
 (define-minor-mode center-content-mode
   "Toggle horizontal and vertical centering of buffer content.