why using graphics mode for a11y?

Hugh Sasse hgs at dmu.ac.uk
Mon Jan 5 11:32:43 GMT 2009

On Sun, 28 Dec 2008, Benjamin Hawkes-Lewis wrote:

> On 28/12/08 21:11, jonathon wrote:
> > The practical reality is that a11y requirements can be mutually
> > exclusive. What works for one set of a11y issues, need not, and often
> > actively hinders, a different set of a11y issues.
> Do you have a knockout example of accessibility requirements where the 
> different needs could not be met by reconfiguration in a single browser?
> Opera is a good example of browser that attempts to cater towards the 
> needs of a wide variety of different disabilities:
>     * It has zoom and fit-to-width capabilities.

I've not found those. 

>     * You can set a minimum font size.
>     * It comes bundled with a range of built-in alternate stylesheets, 
> including high contrast layouts.

It does interact horribly[1] with Windows XP high contrast mode
[alt-shift-printscreeen], which itself doesn't undo itself properly
when toggled: failing to restore the desktop background, for one thing
in XP and vista.  I've reported the bug in Opera.

[1] When reading newsfeeds alternate lines get highlighted. Dropping
out of high contrast mode leaves opera with a black background, but when
in high contrast mode, not all sites get the backgrounds set correctly.

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