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I don't like the function that Customize uses to select color. It spawns a new buffer that messes up window configuration, and is also difficult to search.

I want to replace this function with the following:

(defun helm-insert-color-hex ()
  "Insert the hex value at point for the color selected via helm"
  (interactive)
  (insert (apply 'color-rgb-to-hex (color-name-to-rgb (helm-colors)))))

How can I do this? I can't seem to find what that "Choose" button does (for example, when setting a foreground color for some face)

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  • I couldn't understand your original question, so I rewrote it. If my new text isn't accurate, you can roll-back the change or make further edits. – Tyler Feb 17 '17 at 18:03
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The function used to display the list of colors is list-colors-display. This function is actually called from the color widget, so that's the code you'll need to work with. Emacs widgets are documented in their own manual, available from Emacs via C-h i widget <ret>.

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  • Great, thanks for the question and answer! – Dodgie Feb 17 '17 at 20:21

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