In markdown mode when I enter `---` (3 dash lines or more), the horizontal line becomes green.
Would it be possible to obtain the same behavior in `org-mode` where horizontal lines become colorful?
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https://orgmode.org/manual/Horizontal-Rules.html> 12.9 Horizontal Rules:
> A line consisting of only dashes, and at least 5 of them, is exported
> as a horizontal line.