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Re: Working with colors in --batch mode
From: |
Eli Zaretskii |
Subject: |
Re: Working with colors in --batch mode |
Date: |
Sun, 25 Dec 2022 20:05:59 +0200 |
> From: Kévin Le Gouguec <kevin.legouguec@gmail.com>
> Date: Sun, 25 Dec 2022 18:50:57 +0100
>
> For some reason, today finds me playing with color contrast, and having
> a devil of a time doing so in --batch mode.
>
> Specifically, I'm stumped by…
>
> $ emacs --batch \
> --eval '(message "color-name-to-rgb: %s"
> (color-name-to-rgb "#abcdef"))'
>
> … returning…
>
> > color-name-to-rgb: (0.0 1.0 1.0)
>
> … whereas in a non-batch session on an X display, I get something more
> relevant to my usual Emacs experience (i.e. (window-system) ↦ x):
>
> > color-name-to-rgb: (0.6705882352941176 0.803921568627451 0.9372549019607843)
Emacs doesn't (and cannot, I think) load X colors unless it
initializes the X display, and that doesn't happen in batch sessions.
Basically, batch sessions behave like a colorless TTY session.