Hi, could you please request signals from the other vendors?
https://bit.ly/blink-signals will tell you how they work.
Also, you may want to file a TAG review, or give them a FYI or let us
know why that is not necessary.
/Daniel
On 2023-11-08 13:56, 'Munira Tursunova' via blink-dev wrote:
Contact emails
moon...@google.com, dr...@google.com
Explainer
https://docs.google.com/document/d/1XMTrKH003KBOes6hxzI-3E7LTwp5YwFC-rnzoFpFrfw/edit?usp=sharing
Specification
https://drafts.csswg.org/css-fonts-4/#font-palette-prop
Summary
The CSS font-palette property allows selection of a specific palette
used to render a font. The CSS Fonts 4 spec defines the animation
behavior of this property as discrete, which is insufficient to
achieve a smooth transition between two selected palettes. Instead,
animating the font-palette property should happen by interpolating
each of the colour record values from the defined palette, i.e. if the
start or the end of the animation has a different colour value for
some record in the palette, such colour value should be interpolated.
Blink component
Blink>Fonts
<https://bugs.chromium.org/p/chromium/issues/list?q=component:Blink%3EFonts>
Search tags
font-palette <https://chromestatus.com/features#tags:font-palette>,
animation <https://chromestatus.com/features#tags:animation>,
transition <https://chromestatus.com/features#tags:transition>,
font-palette-values
<https://chromestatus.com/features#tags:font-palette-values>, color
fonts <https://chromestatus.com/features#tags:color%20fonts>
TAG review
None
TAG review status
Not applicable
Risks
Interoperability and Compatibility
Low, new feature, was resolved by W3C working group
https://github.com/w3c/csswg-drafts/issues/8922#issuecomment-1720930646,
but not yet implemented in other browsers.
/Gecko/: No signal Not implemented.
/WebKit/: No signal Not implemented.
/Web developers/: Positive
(https://css-tricks.com/colrv1-and-css-font-palette-web-typography/#:~:text=Another%20limitation%3A%20animations%20and%20transitions%20from%20one%20font%2Dpalette%20to%20another%20don%E2%80%99t%20interpolate%20%E2%80%94%20meaning%20you%20can%20switch%20instantly%20from%20one%20palette%20to%20another%2C%20but%20can%E2%80%99t%20gradually%20animate%20between%20them.%20My%20dream%20of%20a%20luridly%20animated%20emoji%20font%20is%20sadly%20unrealized)
Ollie Williams expressed his interest in the feature in his article on
CSS Tricks. Scott Kellum (of typetura.com <https://typetura.com/>) has
also been suggesting it as a useful feature for the web (origin: a
Twitter thread and email conversation, Scott in the meantime deleted
their Twitter account).
/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
Same as any other CSS property, font-palette property is inspectable
in DevTools.
Will this feature be supported on all six Blink platforms
(Windows, Mac, Linux, Chrome OS, 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/palette-mix-computed.html
https://wpt.fyi/results/css/css-fonts/animations/font-palette-interpolation.html
Flag name on chrome://flags
FontPaletteAnimation
Finch feature name
None
Non-finch justification
None
Requires code in //chrome?
False
Tracking bug
https://bugs.chromium.org/p/chromium/issues/detail?id=1400620
Sample links
https://drafts.csswg.org/css-fonts-4/images/nabla-animated.webp
Estimated milestones
Shipping on desktop 121
DevTrial on desktop 119
Shipping on Android 121
DevTrial on Android 119
Shipping on WebView 121
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/5177171439517696
Links to previous Intent discussions
Intent to prototype:
https://groups.google.com/a/chromium.org/d/msgid/blink-dev/CAAO7W_DFvgY9yqz_Tr%2B2sHMwsydbWMQ66yZWwF7ZoxDZ2yE1QA%40mail.gmail.com
This intent message was generated by Chrome Platform Status
<https://chromestatus.com/>.
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