Contact [email protected], [email protected], [email protected]

Explainer
https://github.com/WICG/manifest-incubations/blob/gh-pages/user-preferences-explainer.md

Specification

Summary

Add a field to the web app manifest which allows apps to specify a
different theme color and background color for dark mode.


Blink componentBlink>AppManifest
<https://bugs.chromium.org/p/chromium/issues/list?q=component:Blink%3EAppManifest>

TAG reviewhttps://github.com/w3ctag/design-reviews/issues/696

TAG review statusPending

Risks


Interoperability and Compatibility



Gecko: No signal (https://github.com/mozilla/standards-positions/issues/630)

WebKit: No signal (
https://lists.webkit.org/pipermail/webkit-dev/2022-April/032187.html)

Web developers: Positive (https://github.com/w3c/manifest/issues/975)

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?



Goals for experimentation

Allow web developers to use this field and provide feedback.


Reason this experiment is being extended

The manifest format is changing slightly based on feedback from the TAG
review. Requesting to extend to M104, which would make this a 6 milestone
trial overall.


Ongoing technical constraints



Debuggability

chrome://web-app-internals can be used for debugging, and this has been
added to the DevTools Application pane.


Will this feature be supported on all six Blink platforms (Windows, Mac,
Linux, Chrome OS, Android, and Android WebView)?No

Not supported on Android


Is this feature fully tested by web-platform-tests
<https://chromium.googlesource.com/chromium/src/+/master/docs/testing/web_platform_tests.md>
?No

Flag namechrome://flags/#enable-experimental-web-platform-features

Requires code in //chrome?True

Tracking bughttps://bugs.chromium.org/p/chromium/issues/detail?id=1271804

Launch bughttps://bugs.chromium.org/p/chromium/issues/detail?id=1279284

Estimated milestones
OriginTrial desktop last 102
OriginTrial desktop first 99Requesting to extend to 104.


Link to entry on the Chrome Platform Status
https://chromestatus.com/feature/5714780426862592

Links to previous Intent discussionsIntent to prototype:
https://groups.google.com/a/chromium.org/g/blink-dev/c/Y6zNtG0f-6A
Intent to Experiment:
https://groups.google.com/a/chromium.org/g/blink-dev/c/ftoKq32Baz4


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

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