Add requirement for shape as well as color be used?

[w3c]

Add requirement for shape as well as color be used?

[RealJoshue108]

Thanks @matatk to clarify for me.. You mean that the shape of particular items or object could be used to denote meaning, or other affordances?

[RealJoshue108]

@matatk We have raised this in RQTF. Can you clarify if you mean relating to cognitive issues? Stand icons or symbol sets? To convey diff types of info?

Is it a variation on the conveying information by colour, or where you have a road sign that is a shape that the user can recognise?

[RealJoshue108]

Relates also to w3c/xaur#35

[matatk]

Sorry @RealJoshue108 I missed your extra comments there. I was referring to accessibility for people with vision impairments (particularly colour perception deficit) which is similar to WCAG SC 1.4.1 but maybe goes a bit beyond it.

Here's an example from the Game Accessibility Guidelines on not using colour alone—note the best practice examples at the end; they give examples of how the information is still conveyed visually, but no longer relies only on colour to convey its meaning.

However there are two ways this could be extended:

• By providing semantic/textual info (as in WCAG SC 1.4.1) e.g. for screen reader users.
• Into the area of providing improved support for people with cognitive impairments.

I'm not an expert on the cognitive side of things (though definitely interested). I wonder if that would be an additional, related, issue, rather than an extension of this one, though.

Also it seems there's more traffic on w3c/xaur#35, which seems very close to this—I'm going to close this one for now, but please re-open if you feel like there's some difference between these.