Org-mode: How to display current time record in another color?

Question

I'm still very new to emacs and currently use it on the terminal to track my work time in org-mode.

** Save the world
:LOGBOOK:
CLOCK: [2019-02-14 Do 10:24]
CLOCK: [2019-02-14 Do 08:51]--[2019-02-14 Do 09:28] =>  0:37

How could I make it display the currently running time record in a different color or bold to make it more visible? I'm aware that I can also see the current task in the status line.

Answer 1

The following code puts an overlay with red bold face on the running clock whenever you call org-clock-in. It removes the overlay when you call org-clock-out.

I am not entirely sure whether that is the right thing for you since the LOGBOOK drawer is not shown by default. But the code could easily be adapted such that the overlay is put on the heading with running clock.

(require 'org-element)
(require 'org-clock)

(defvar org-clock-running-ol nil
  "Overlay for the running clock.")

(defface org-clock-running-face
  '((t :foreground "Red" :weight bold))
  "Face for highlighting the running clock.")

(defun org-clock-add-running-ol ()
  "Highlight the running clock."
  (save-excursion
    (when (org-clock-is-active)
      (org-clock-remove-running-ol)
      (goto-char org-clock-marker)
      (setq org-clock-running-ol (make-overlay (point) (scan-sexps (point) -1)))
      (overlay-put org-clock-running-ol 'face 'org-clock-running-face)
      )))

(defun org-clock-remove-running-ol ()
  (when (overlayp org-clock-running-ol)
    (delete-overlay org-clock-running-ol)
    (setq org-clock-running-ol nil)))

(add-hook 'org-clock-in-hook #'org-clock-add-running-ol)
(add-hook 'org-clock-out-hook #'org-clock-remove-running-ol)

Answer 2

I think changing the color for org-clock-overlay is what you are looking for.

Just M-xlist-faces-display RET to see a list with all the faces. Search for org-clock-overlay and customize it the way you want.