GNU bug report logs - #33093
26.1, 7.2 emacs-mac; M-x list-colors-display RET; L1 is black on black

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Message #33 received at 33093 <at> debbugs.gnu.org (full text, mbox):

From: Eli Zaretskii <eliz <at> gnu.org>
To: Van L <van <at> scratch.space>
Cc: 33093 <at> debbugs.gnu.org, juri <at> linkov.net
Subject: Re: bug#33093: 26.1, 7.2 emacs-mac; M-x list-colors-display RET;
 L1 is black on black
Date: Fri, 26 Oct 2018 09:34:27 +0300

> From: Van L <van <at> scratch.space>
> Date: Fri, 26 Oct 2018 09:02:48 +1100
> Cc: 33093 <at> debbugs.gnu.org
> 
> It might be not worth the effort because it is near impossible to do, but to imagine whiteclouds/bluesky, you could have the text always legible where fore/background colors are too near for contrast and a swatch-like solid cursor rectangle occupying the first position of the line represents the actual foreground color. There you see the fore/background colors are in fact indistinguishable. Just a wild idea.

You mean, you think Emacs should change the foreground color without
user's say-so, just because the contrast against the background is
low?  That might be optional behavior, but certainly not the default.

(We do have infrastructure in place to test whether contrast between
background and foreground colors is low.)

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