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Re: Accessibility and Web Fonts

From: <chaals@yandex-team.ru>
Date: Sat, 26 Nov 2016 01:33:44 +0100
To: Michael A. Peters <mpeters@domblogger.net>, "w3c-wai-ig@w3.org" <w3c-wai-ig@w3.org>
Message-Id: <293381480120424@webcorp02g.yandex-team.ru>
You should hunt down the work that Luz Rello did with Ricardo Baeza-Yates on dyslexia, as presented e.g. at Open Web Camp: http://openwebcamp.com/sessions/dyslexia-what-have-we-learned-so-far/

Which is a more complete look at the question - and what helps and doesn't…


26.11.2016, 00:51, "Michael A. Peters" <mpeters@domblogger.net>:
> Okay I believe the issue with SVG fonts over WOFF/WOFF2 was something I
> mis-interpreted. I had read something on an Opera developer blog that
> gave me that impression but I can not find it. I suspect it was a
> mis-understanding on my part.
> What I did find however is that people with dyslexia often have an
> easier time with sans-serif fonts, fonts with good distinct ascenders /
> descenders, fonts where b and d are not mirrors (or close mirrors), same
> with p and q, fonts with spacing so that 'modern' doesn't look to
> similar to 'modem', fonts where I l and 1 are distinct, and many seem to
> prefer a rounded g.
> What would be cool is to see peer reviewed research into font
> characteristics and how they impact dyslexia so that web designers can
> either use fonts that are good with dyslexia or offer an alternate style
> sheet that only uses fonts good for people with dyslexia.
> Some kind of a standard API where the browser could inform the server of
> the preference would also be nice (header) but would be yet another
> browser fingerprint metric so maybe that's not a good idea, but maybe
> what could be done is something could be done with @font-face in CSS
> where the declared webfont can be different if the user has their
> browser set up to prefer dyslexia friendly fonts. e.g.
> @font-face {
>    font-family: 'primaryFont-Regular';
>    src: url('/webfonts/argent-cf.woff2') format('woff2'),
>      url('/webfonts/argent-cf.woff') format('woff');
>    dys-src('/webonts/somethingelse.woff2') format('woff2'),
>      url('/webfonts/somethingelse.woff') format('woff');
>    font-weight: normal;
>    font-style: normal;
> }
> That way if someone tells their browser they are dyslexic, with webfonts
> it could look for dys-src (or whatever) and use that if present, falling
> back to src when it isn't present.
> dys-src would only need to be used when the font in src is problematic
> with dyslexia.
> One issue I found is that many fonts that reportedly help people with
> dyslexia (anectodal evidence though) made text harder for me to read,
> which is why I am thinking dys-src (or whatever) may sometimes be better
> than just using it as the primary font. That though would have to be
> brought to the W3C.
> Thoughts?
> On 11/24/2016 11:18 PM, Michiel Bijl (list) wrote:
>>  Hi Michael,
>>  This is the first time I’ve heard of SVG font’s being used in that way.
>>  Especially considering SVG fonts have been removed from SVG 2.0 and
>>  considered a deprecated feature. For example, they were removed from
>>  Chrome 37 onwards. Some people with dyslexia that I know replace web
>>  fonts altogether, whether that be SVG, OTF. WOFF, or something else
>>  doesn’t matter.
>>  Cheers.
>>  —Michiel
>>>  On 24 Nov 2016, at 19:29, Michael A. Peters <mpeters@domblogger.net
>>>  <mailto:mpeters@domblogger.net>> wrote:
>>>  I usually don't do more than specify the broad type of font (e.g.
>>>  sans-serif) but for a project I am currently working on, I am making
>>>  use of web fonts.
>>>  Commercial web fonts came with woff, woff2, and svg
>>>  However in converting some FLOSS fonts to webfonts - I only made woff
>>>  and woff2 versions.
>>>  It was suggested to me that making SVG fonts available is of benefit
>>>  to people with certain types of dyslexia, apparently they can be
>>>  rendered in a way that make the dyslexia less of an impact.
>>>  Is that really the case or do ttf repackaged in woff/woff2 work just
>>>  as well? And if woff/woff2 do not work just as well, is there anything
>>>  special that needs to be done when preparing the svg fonts and/or
>>>  making the client aware they exist?
>>>  I'm having trouble finding information on it.
>>>  Thank you for anyone who knows, and happy Thanksgiving to those of us
>>>  in the United States :)

Charles McCathie Nevile - standards - Yandex
chaals@yandex-team.ru - - - Find more at http://yandex.com
Received on Saturday, 26 November 2016 00:34:21 UTC

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