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Re: correct character for (contrast) ratio

From: Alastair Campbell <acampbell@nomensa.com>
Date: Fri, 4 Mar 2022 17:37:26 +0000
To: "wolfgang.berndorfer@zweiterblick.at" <wolfgang.berndorfer@zweiterblick.at>, "public-agwg-comments@w3.org" <public-agwg-comments@w3.org>
Message-ID: <PR3PR09MB5347BC94D6DA5E1C16D6E306B9059@PR3PR09MB5347.eurprd09.prod.outlook.com>
Hi Wolfgang,

We tested this proposal and checked with several screenreader users, you can see the thread:

The recommendation was not to make this change, for the reasons outlined in this comment:

It is an area that needs improvement though and there is a "Pronunciation Gap Analysis and Use Cases<https://www.w3.org/TR/pronunciation-gap-analysis-and-use-cases/>" doc from the W3C. This might be a good use-case to mention.

If you wish to pursue it, I suggest raising an issue (i.e. this use-case) for that document:

Kind regards,


AGWG co-chair

From: wolfgang.berndorfer@zweiterblick.at <wolfgang.berndorfer@zweiterblick.at>
Date: Thursday, 30 April 2020 at 10:22
To: public-agwg-comments@w3.org <public-agwg-comments@w3.org>
Subject: correct character for (contrast) ratio

Please use the correct character code for ratio (e.g. 3กร1 and not 3:1)!

WCAG 2.1 and the working draft for WCAG 2.2 use : but it should be กร (&ratio; or &#8758;).
Visually both look nearly the same, but good screen readers announce them differently.

Wolfgang Berndorfer
Received on Friday, 4 March 2022 17:37:41 UTC

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