From: Eli Zaretskii <eliz@gnu.org>
To: "Michał Nazarewicz" <mina86@mina86.com>
Cc: emacs-devel@gnu.org
Subject: Re: Would True Colour to ANSI 8-bit palette conversion be useful
Date: Fri, 14 Jun 2024 14:14:19 +0300 [thread overview]
Message-ID: <86le37ydx0.fsf@gnu.org> (raw)
In-Reply-To: <CA+pa1O1RnSPzxigXuvuGsPRq6h0y599kK+ycqbWYBZxs4A0tuA@mail.gmail.com> (message from Michał Nazarewicz on Fri, 14 Jun 2024 06:01:19 -0400)
> From: Michał Nazarewicz <mina86@mina86.com>
> Date: Fri, 14 Jun 2024 06:01:19 -0400
>
> A while back I wrote https://github.com/mina86/ansi_colours which
> takes 24-bit RGB colour and spits out the best matching entry from
> ANSI 8-bit palette. I’ve recently looked through NEWS and noticed
> changes related to the true colour support on the terminal.
>
> This got me wondering whether a feature to do True Colour -> ANSI
> conversion would be useful somewhere in Emacs. The typical usage is
> where the user specifies 24-bit colour but the terminal supports the
> 8-bit palette only.
Maybe I misunderstand what you mean by that, but Emacs already
attempts to find the best color of the N colors the terminal actually
supports that approximates the color specified by a face. That
includes the case of only 8 supported colors. See tty-colors.el.
This transparent color approximation exists in Emacs since v21.1, and
it was necessary to let Lisp programs specify X colors without
worrying too much about what will happen on TTY frames.
If the approximation implemented in tty-color-approximate is not what
you have in mind, please tell more about your ideas.
Thanks.
next prev parent reply other threads:[~2024-06-14 11:14 UTC|newest]
Thread overview: 3+ messages / expand[flat|nested] mbox.gz Atom feed top
2024-06-14 10:01 Would True Colour to ANSI 8-bit palette conversion be useful Michał Nazarewicz
2024-06-14 11:14 ` Eli Zaretskii [this message]
2024-06-14 12:05 ` Michał Nazarewicz
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