Media Queries Level 5: prefers-reduced-motion, prefers-contrast, prefers-color-scheme

Request for Mozilla Position on an Emerging Web Specification

Specification Title: Media Queries Level 5: User Preference Media Features
Specification or proposal URL: https://drafts.csswg.org/mediaqueries-5/#prefers-reduced-motion
Specification or proposal URL: https://drafts.csswg.org/mediaqueries-5/#prefers-contrast
Specification or proposal URL: https://drafts.csswg.org/mediaqueries-5/#prefers-color-scheme
Caniuse.com URL (optional):
Bugzilla URL (optional): https://bugzilla.mozilla.org/show_bug.cgi?id=1365045
Bugzilla URL (optional): https://bugzilla.mozilla.org/show_bug.cgi?id=1506364
Bugzilla URL (optional): https://bugzilla.mozilla.org/show_bug.cgi?id=1494034
Mozillians who can provide input (optional): @heycam, @dbaron
W3C Tag Design Review issue: none

This issue is scoped to three of the new features in Media Queries Level 5, which we have implemented, as part of evaluating Media Queries Level 5 as a whole: prefers-reduced-motion, prefers-color-scheme, and most recently, prefers-contrast (as announced last week).

These features enhance accessibility features of the platform and thus we should consider a status of "important" for these three as a whole.

Label: w3c.