W3C home > Mailing lists > Public > www-style@w3.org > February 2016

[mediaqueries] light-level

From: fantasai <fantasai.lists@inkedblade.net>
Date: Fri, 5 Feb 2016 18:39:17 -0800
To: "www-style@w3.org" <www-style@w3.org>
Message-ID: <56B55CD5.2000002@inkedblade.net>
# For accessibility purposes, user agents may offer manual
# controls allowing the user to switch between the 3 levels
# of independently of the ambient light level, as high
# contrast or low contrast styles may be more suitable for
# users with visual disabilities.
#
# Using this media feature for accessibility purposes
# overlaps a lot with the high-contrast media feature
# proposed by Microsoft. Can we adjust this so that it
# covers all use cases for both, or somehow modify them
# to work in an orthogonal, rather than overlapping, fashion?

So, I don't think we should mix up accessibility and light-level.
Responses to light-level can involve contrast but also background/
foreground swaps: e.g. I might go with a light-on-dark scheme in
dim lighting to avoid disrupting low-light vision, but not
necessarily reduce the contrast.

If we want to present contrast preferences, that should be
explicit. We can show examples where someone who is drawing
up a low-contrast scheme for dim lighting *also* applies that
for people with a contrast preference, but they shouldn't be
tied together.

So I'd remove this issue and work on addressing the need for
contrast or foreground/background preferences.

~fantasai
Received on Saturday, 6 February 2016 02:39:45 UTC

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