Custom code with a timer delay for current-column marking in highlight indentation mode

highlight-indentation-current-column-timer.el

(use-package highlight-indentation
  :ensure highlight-indentation
  :init
  ;; Add a timer delay to the current column highlight for efficiency,
  ;; and to avoid flashing when scrolling or moving by line
  (defvar my/highlight-indentation-current-column-timer nil)
  (defun my/highlight-indentation-current-column ()
    (highlight-indentation-redraw-window (selected-window)
     'highlight-indentation-current-column-overlay
     'highlight-indentation-current-column-put-overlays-region))
  (defun my/highlight-indentation-current-column-with-timer ()
    (when my/highlight-indentation-current-column-timer
      (cancel-timer my/highlight-indentation-current-column-timer)
      (setq-local my/highlight-indentation-current-column-timer nil))
    (setq-local my/highlight-indentation-current-column-timer
		(run-at-time 0.15 nil
			     #'my/highlight-indentation-current-column)))
  :config
  (setf (cadar highlight-indentation-current-column-hooks)
	#'my/highlight-indentation-current-column-with-timer)
  :custom-face
  (highlight-indentation-current-column-face
   ((t (:background ,(alect-get-color 'dark 'magenta-bg+1)))))
  (highlight-indentation-face ((t (:inherit hl-line))))
  :hook
  ((python-mode markdown-mode yaml-mode) . highlight-indentation-mode)
  ((python-mode markdown-mode yaml-mode) . highlight-indentation-current-column-mode))