Thank you Philip for your approval, font-variation-settings CL is also merged, 
I'll ship both of them together.


________________________________
From: Philip Jägenstedt <foo...@chromium.org>
Sent: Saturday, July 5, 2025 1:54 PM
To: Chromestatus <ad...@cr-status.appspotmail.com>
Cc: blink-dev@chromium.org <blink-dev@chromium.org>; Ragvesh Sharma's 
Organization (FTE) <ragvesh_org_...@microsoft.com>
Subject: [EXTERNAL] Re: [blink-dev] Intent to Ship: Support 
font-feature-settings descriptor in @font-face rule

LGTM1, thank you for addressing this pain point for developers!

The scope of this intent is font-feature-settings, but now that 
https://chromium-review.googlesource.com/c/chromium/src/+/6582382 has been 
merged, do you want to ship support for font-feature-settings and 
font-variation-settings together? I think that would be great, but my LGTM is 
not conditional on it.

I also confirmed that the linked tests are failing on stable but passing on 
experimental, so everything seems to be in good order!

On Thu, Jul 3, 2025 at 4:53 AM Chromestatus 
<ad...@cr-status.appspotmail.com<mailto:ad...@cr-status.appspotmail.com>> wrote:
Contact emails
sejalan...@microsoft.com<mailto:sejalan...@microsoft.com>

Explainer
None

Specification
https://www.w3.org/TR/css-fonts-4/#font-rend-desc

Summary

As CSS allows fine control over font features using 'font-feature-settings' at 
the element level, Chromium-based browsers currently lack support for these 
properties within '@font-face' declarations. This feature supports the 
string-based syntax for font-feature-settings as defined in CSS Fonts Level 4. 
Invalid or unrecognized feature tags will be ignored per specification. No 
binary or non-standard forms are supported. As OpenType fonts become more 
widely adopted, this enhancement will improve typographic control, reduce 
redundancy, and support a more scalable, modern approach to web design.


Blink component
Blink>Fonts<https://issues.chromium.org/issues?q=customfield1222907:%22Blink%3EFonts%22>

TAG review
None

TAG review status
Not applicable

Risks


Interoperability and Compatibility


Gecko: Shipped/Shipping (https://bugzilla.mozilla.org/show_bug.cgi?id=1355366)

WebKit: Shipped/Shipping (https://bugs.webkit.org/show_bug.cgi?id=63618)

Web developers: Positive 
(https://stackoverflow.com/questions/27486680/how-to-set-default-font-feature-settings)
 Over 30 users have indicated that they are affected by this issue and its 
related duplicates, as noted in https://issues.chromium.org/issues/40398871 and 
https://issues.chromium.org/issues/324519293

Other signals:

WebView application risks

Does this intent deprecate or change behavior of existing APIs, such that it 
has potentially high risk for Android WebView-based applications?

None


Debuggability

Existing DevTools capabilities already cover this.


Will this feature be supported on all six Blink platforms (Windows, Mac, Linux, 
ChromeOS, Android, and Android WebView)?
Yes

Is this feature fully tested by 
web-platform-tests<https://chromium.googlesource.com/chromium/src/+/main/docs/testing/web_platform_tests.md>?
Yes

https://wpt.fyi/results/css/css-fonts/font-feature-settings-descriptor-02.html?label=master&label=experimental&aligned
 
https://wpt.fyi/results/css/css-fonts?label=master&label=experimental&aligned&q=font-feature-settings-descriptor-binary.html


Flag name on about://flags


Finch feature name
FontFeatureSettingsDescriptor

Rollout plan
Will ship enabled for all users

Requires code in //chrome?
False

Tracking bug
https://issues.chromium.org/issues/40398871

Estimated milestones
Shipping on desktop     139
Shipping on Android     139
Shipping on WebView     139
Shipping on iOS 139


Anticipated spec changes

Open questions about a feature may be a source of future web compat or interop 
issues. Please list open issues (e.g. links to known github issues in the 
project for the feature specification) whose resolution may introduce web 
compat/interop risk (e.g., changing to naming or structure of the API in a 
non-backward-compatible way).

None

Link to entry on the Chrome Platform Status
https://chromestatus.com/feature/5102801981800448?gate=5197421990379520

This intent message was generated by Chrome Platform 
Status<https://chromestatus.com/>.

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