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Re: [csswg-drafts] [mediaqueries] Media Feature: "reduce motion" user setting

From: James Craig via GitHub <sysbot+gh@w3.org>
Date: Tue, 06 Dec 2016 16:36:30 +0000
To: public-css-archive@w3.org
Message-ID: <issue_comment.created-265199355-1481042189-sysbot+gh@w3.org>
@inoas suggested these as potential default values:
(motion: all)
(motion-preference: all)
(prefers-motion: all)

None of these are backwards compatible, and `all` as a falsey value 
feels awkward to me.

@inoas and @frivoal suggested these as potential 
forced-all-animations-off values:
reduce-motion-preference: forced
motion-preference: disabled
motion-preference: block
I think the concept of a forced-all-animations-off  value is unlikely 
to be implemented well due to it breaking too many interactions, but 
let's agree to keep the syntax open to this idea if needed. I believe 
the current proposal in PR #586 does so:

prefers-reduced-motion: default | reduce; /* future potential for 
forced-no-motion, etc. */ 

@inoas also mentioned:
> @cookiecrook Not a fan of the shorthand, but the idea with the 
prefers- prefix seems to be a good one!

I'm glad you liked the prefix. I'm not which shorthand you were 
referring to. @grorg's PR #586 used `prefers-reduced-motion: default |

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