------------ Původní zpráva ------------ Od: Jay R. Ashworth jra@baylink.com Předmět: Re: [Wikitech-l] visual diff for svg Datum: 14.8.2007 20:57:55
On Mon, Aug 13, 2007 at 03:08:37PM -0700, Phil Boswell wrote:
Would it work better if the intervals were more regular? or even if the "flash" were to come more frequent. I found myself waiting to see whether I'd seen something, and not always looking in the right place.
I'm inclined to think that a .25 to .5s flip rate, with "OLD" and "NEW" labels physically disjoint, would work best.
Please, keep in mind, that "people with photosensitive epilepsy can have seizures triggered by flickering or flashing in the 4 to 59 flashes per second (Hertz) range with a peak sensitivity at 20 flashes per second as well as quick changes from dark to light (like strobe lights)."
Quoted from http://www.w3.org/TR/WCAG10/#q34
Danny B.