From mboxrd@z Thu Jan  1 00:00:00 1970
From: Pankaj Jangid <p4j@j4d.net>
Subject: Re: need to increase contrast in all emacs faces for legibility
Date: Wed, 11 Dec 2019 12:04:26 +0000
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 (Samuel Wales's message of "Tue, 10 Dec 2019 20:39:21 -0700")
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To: Samuel Wales <samologist@gmail.com>
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> is it possible to programmatically increase foreground contrast
> against their background in all faces?


For shr (the built-in browser), there is something. But in general I am
not aware if there is something related to this.

shr-color-visible-distance-min, shr-color-visible-luminance-min

These two variables are used for shr.