2047437 - Implement alpha() function behind pref

Status: RESOLVED FIXED

(Core :: CSS Parsing and Computation, enhancement)

Description

[Sajid Anwar [:sajidanwar]]

Will be named layout.css.alpha-color-function.enabled in my patch.

Added dev-doc-needed so the new flag can be added to https://developer.mozilla.org/en-US/docs/Mozilla/Firefox/Experimental_features (I think that's the right keyword for this, but maybe Sebastian can pop in and fix it if wrong 😀).

Also flipped relnote to ? as this bug will enable this flag by default for nightly builds.

Release Note Request
[Why is this notable]: New CSS feature, parity with Chrome
[Affects Firefox for Android]: Yes
[Suggested wording]: Firefox Nightly now supports the alpha() CSS function. This is a relative color function that can be used to modify just the alpha component of a given color.
[Links (documentation, blog post, etc)]: https://drafts.csswg.org/css-color-5/#relative-alpha (No MDN page for this yet)

Comment 1

[Sajid Anwar [:sajidanwar]]

Attachment: Bug 2047437 - Implement alpha() color function behind pref. r=#style

Comment 2

[Pulsebot]

Pushed by [e-mail]:
https://github.com/mozilla-firefox/firefox/commit/df33f3db5275
https://hg.mozilla.org/integration/autoland/rev/5217ac97a22c
Implement alpha() color function behind pref. r=firefox-style-system-reviewers,emilio

Comment 3

[Web Platform Test Sync Bot [:wpt-sync] (Matrix: #interop:mozilla.org)]

Created web-platform-tests PR https://github.com/web-platform-tests/wpt/pull/60632 for changes under testing/web-platform/tests

Comment 4

[Norisz Fay [:noriszfay]]

https://hg.mozilla.org/mozilla-central/rev/5217ac97a22c

Comment 5

[Web Platform Test Sync Bot [:wpt-sync] (Matrix: #interop:mozilla.org)]

Upstream PR merged by moz-wptsync-bot