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Re: Graphics contrast - critical principle

From: David MacDonald <david100@sympatico.ca>
Date: Thu, 8 Dec 2016 12:22:49 -0500
Message-ID: <CAAdDpDbFxiCX5oPTuZLH1dhD0iFzQXiw2YsYoyqyvOQugVu_+Q@mail.gmail.com>
To: Alastair Campbell <acampbell@nomensa.com>
Cc: Gregg C Vanderheiden <greggvan@umd.edu>, GLWAI Guidelines WG org <w3c-wai-gl@w3.org>
Should we be requiring the image have contrast with the background on all
sides or just one or some sides.... ?

 I think this was a comment from Michael Gower at IBM (regarding
border/stroke) which I found worth exploring ...

Cheers,
David MacDonald



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On Thu, Dec 8, 2016 at 11:52 AM, Alastair Campbell <acampbell@nomensa.com>
wrote:

> Hi Gregg,
>
>
>
> > The Unit of testing for WCAG is the page. If you try to use something
> smaller it will fundamentally change everything.
>
>
>
> Sorry, I didn’t realise that was a trigger phrase!
>
>
>
> I meant in the same sense as you test text contrast. There the thing you
> are testing is the text on a background.
>
>
>
> Here you are identifying a graphic, or element within a graphic against
> its background and/or adjacent graphics.
>
>
>
> I hadn’t used the term in the SC or description, just in an email!
>
>
>
> Cheers,
>
>
>
> -Alastair
>
>
>
Received on Thursday, 8 December 2016 17:23:24 UTC

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