- From: fantasai <fantasai.lists@inkedblade.net>
- Date: Wed, 24 Feb 2016 23:40:12 -0500
- To: "Tab Atkins Jr." <jackalmage@gmail.com>, Florian Rivoal <florian@rivoal.net>
- Cc: "www-style@w3.org" <www-style@w3.org>
On 02/09/2016 11:24 PM, Tab Atkins Jr. wrote: > On Tue, Feb 9, 2016 at 7:39 PM, Florian Rivoal <florian@rivoal.net> wrote: >>> On Feb 10, 2016, at 10:14, Tab Atkins Jr. <jackalmage@gmail.com> wrote: >>> We don't generally care about groups which need *less* a11y help, so >>> "reducing contrast" isn't really a use-case in the first place. ^_^ >> >> Actually it is. Not for people with low vision, but for people with >> certain forms of dyslexia, high contrast can make the text appear >> to be shining/sparkling/dancing, or just generally compound the >> difficulty of differentiating certain letter shapes (p vs q) and >> make things hard to read. >> >>> On the other hand, increasing contrast for "light-level: washed" is a >>> good idea, *and* it can help with a11y that wants high-contrast. (It >>> also generally means going with dark-on-light, which is better for >>> low-sighted users too.) >> >> Luckily, this works in the other direction as well. The type of corrections >> that people tend to apply in response to "light-level: dim" also correlate >> well with the type of adjustment people with dyslexia favor: >> * reducing contrast >> * reducing blue light and going for a sepia / warm colors >> * light-on-dark > > Good points! My point isn't that there isn't overlap here, just that there are many cases where the response to light-level might not be something you want for a specific a11y concern. For example light-level responses can include * increasing/decreasing contrast * swapping light-on-dark vs. dark-on-light themes However, a11y preferences are generally one or the other. So I would rather we a) Dealt with light-level and a11y issues around contrast at the same time, but not in the same query b) Instead advocated the use of the relevant a11y query together with light-level -- e.g. making sure all examples look like @media (light-level: dim) or (pref-contrast: low) { /* low contrast styles */ } @media (light-level: dim) or (pref-foreground: light) { /* light text on dark background */ } c) Deferred light-level to Level 5 to be worked on together with the a11y queries, in order to advance the rest of this draft to CR within the next 6 months, because I really think some of these things are ready and critically needed out in the real world... and the a11y queries are still in the brainstorming stages atm. ~fantasai
Received on Thursday, 25 February 2016 04:40:47 UTC