こんにちは TAG-さん!

I'm requesting a TAG review of CSS prefers-reduced-transparency.

The prefers-reduced-transparency media feature is used to detect if the user has requested the system minimize the amount of transparent or translucent layer effects it uses.

• Explainer¹ (minimally containing user needs and example code): https://developer.mozilla.org/en-US/docs/Web/CSS/@media/prefers-reduced-transparency
• Specification URL: https://drafts.csswg.org/mediaqueries-5/#prefers-reduced-transparency
• Tests: https://github.com/web-platform-tests/wpt/blob/master/css/mediaqueries/prefers-reduced-transparency.html
• User research: https://github.com/w3c/csswg-drafts/issues/443
• Security and Privacy self-review²: https://gist.github.com/lukewarlow/f515062a03def6f214f7a1fad5446eb2
• GitHub repo (if you prefer feedback filed there): n/a
• Primary contacts (and their relationship to the specification):
  • Dean Jackson, Apple
  • Florian Rivoal, Invited Expert
  • Tab Atkins Jr, Google
  • Daniel Libby, Microsoft
• Organization(s)/project(s) driving the specification:
  • cookiecrook by implementing this PR
• Key pieces of existing multi-stakeholder review or discussion of this specification:
  • CSSWG GitHub Issue
  • Intent to Prototype Firefox
  • Intent to Prototype Chromium
• External status/issue trackers for this specification (publicly visible, e.g. Chrome Status):
  • Chrome Status

Further details:

• I have reviewed the TAG's Web Platform Design Principles
• Relevant time constraints or deadlines: n/a
• The group where the work on this specification is currently being done: CSSWG
• The group where standardization of this work is intended to be done (if current group is a community group or other incubation venue): CSSWG
• Major unresolved issues with or opposition to this specification: adds a fingerprinting vector
• This work is being funded by:

We'd prefer the TAG provide feedback as (please delete all but the desired option):

💬 leave review feedback as a comment in this issue and @-notify @lukewarlow