- From: Janina Sajka <janina@rednote.net>
- Date: Thu, 28 Jul 2016 15:53:47 -0400
- To: Eric Eggert <ee@w3.org>
- Cc: John Foliot <john.foliot@deque.com>, WCAG <w3c-wai-gl@w3.org>, W3C WAI Accessible Platform Architectures <public-apa@w3.org>
FYI, APA currently has an open CfC on a draft comment requesting an Accessibility Impact section in the CSS spec. The request is, with some wording tweaks, essentially the same as at: http://lists.w3.org/Archives/Public/public-apa/2016Jul/0040.html If the above is incorrect, it would be helpful to know that before next Wednesday 3 August. Janina Eric Eggert writes: > On 28 Jul 2016, at 19:12, John Foliot wrote: > > > Hi. > > > > A question/comment for the Working Group: have we contemplated changes > > (in > > any of SC, Understanding or Techniques) that addresses the impact of > > Alpha > > Transparency of colors and the impact on color contrast and > > accessibility? > > Has any of the 3 current Task Forces covered this in any fashion? > > > > As part of an Action Item[\*] I have at the APA, I have been asked to > > reach > > out to WCAG WG as there is a recognized need for techniques to measure > > color contrast with alpha layer related to > > https://www.w3.org/tr/css-color-4/ css color module level 4 > > Just skimmed the document and found this contrast CSS function which has a > related luminance computation – this might be interesting to see how that > works with the WCAG 2.0 definition. I think alpha transparency would be > really good to cover in 2.1… > > http://www.w3.org/TR/css-color-4/#contrast-adjuster > > > > > If none of the TF's have looked at this to date, Andrew & Josh can we > > get > > this logged as an action item for the WCAG WG? As well, if we have any > > questions or concerns around any of this, we (APA) already have some > > time > > blocked out at TPAC with the CSS WG, and that would be the time to bring > > forward those issues. Hoping to flesh this out between this week and > > September. > > > > Cheers! > > > > JF > > > > [\* https://www.w3.org/WAI/APA/track/actions/2066 - link may not be open > > to > > all to see, but the gist of the issue is covered in this email.] > > > > -- > > John Foliot > > Principal Accessibility Strategist > > Deque Systems Inc. > > john.foliot@deque.com > > > > Advancing the mission of digital accessibility and inclusion > > > > > -- > > Eric Eggert > Web Accessibility Specialist > Web Accessibility Initiative (WAI) at World Wide Web Consortium (W3C) > -- Janina Sajka, Phone: +1.443.300.2200 sip:janina@asterisk.rednote.net Email: janina@rednote.net Linux Foundation Fellow Executive Chair, Accessibility Workgroup: http://a11y.org The World Wide Web Consortium (W3C), Web Accessibility Initiative (WAI) Chair, Accessible Platform Architectures http://www.w3.org/wai/apa
Received on Thursday, 28 July 2016 19:54:13 UTC