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RE: CSS Parsed Unambiguously

From: Gregg Vanderheiden <gv@trace.wisc.edu>
Date: Mon, 12 Jun 2006 10:44:23 -0500
To: "'Tina Holmboe'" <tina@greytower.net>
Cc: <w3c-wai-gl@w3.org>
Message-ID: <007301c68e37$14be7750$8b17a8c0@NC6000BAK>

Sorry Tina,  was rushing and shouldn't have.   

You asked the question  
" So, basically, we /do/ have a case of what I asked last week: a stylesheet
  can pass SC 4.1.1 and be harmful to accessibility - both at the same time.
  There is a problem here, isn't there?"

I was saying that that would result in black text on a black background -
something that no-one could read (except people with screen readers).
Accessibility is about problems that people with disabilities have that
others do not. 

So this wouldn't be an accessibility problem.

But we are very interested in this problem / issue. 

What we need are examples of things that really happen, (real accessibility
problems happening on the web), that do not violate other SC we already
have. (this one for example - if it weren't black on black but say black on
dark blue) would violate our contrast SC.  Not at the same level - but the
group decided that bad contrast was not a L1 issue.  

Also, we want to be sure that we don't require more than is required for
access.     

Thanks 

Gregg

 -- ------------------------------ 
Gregg C Vanderheiden Ph.D. 
Professor - Ind. Engr. & BioMed Engr.
Director - Trace R & D Center 
University of Wisconsin-Madison 
The Player for my DSS sound file is at http://tinyurl.com/dho6b 

> -----Original Message-----
> From: w3c-wai-gl-request@w3.org [mailto:w3c-wai-gl-request@w3.org] On
> Behalf Of Tina Holmboe
> Sent: Monday, June 12, 2006 11:16 AM
> To: Gregg Vanderheiden
> Cc: w3c-wai-gl@w3.org
> Subject: Re: CSS Parsed Unambiguously
> 
> 
> On Mon, Jun 12, 2006 at 10:10:09AM -0500, Gregg Vanderheiden wrote:
> 
> > No
> 
>   No ... what? I'm afraid I don't quite follow which of the items you
>   say no to. It would be very helpful if you could follow standard
>   quoting conventions, as it prevents context-loss. Thank you in
>   advance.
> 
> 
> 
> > Black text on black background is not going to ship.   And is not an
> > accessibility problem.  People with disabilities and using AT are
> actually
> > at an advantage, not disadvantage.
> 
>   Finding a use-case for this is relatively simple. A legally blind person
>   employing a screen magnification device. Black on black WILL be a
> problem
>   for this disabled user despite AT - UNLESS we are to assume that ALL
>   disabled users turn off or modify stylesheets?
> 
>   It is also a problem for other users. I am well, and sadly, aware of the
>   WCAG restriction to disabilities, but that does not alter reality.
> 
> 
> --
>  -       Tina Holmboe                           Greytower Technologies
>        tina@greytower.net                      http://www.greytower.net
>         +46 708 557 905
Received on Monday, 12 June 2006 15:44:33 GMT

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