LGTM2
On 11/23/23 8:39 AM, Yoav Weiss wrote:
LGTM1 assuming there aren't any surprises on that front. Thanks!!
On Thu, Nov 23, 2023 at 2:33 PM Dominik Röttsches <dr...@google.com>
wrote:
Hi Yoav,
On Wed, Nov 22, 2023 at 6:46 PM Yoav Weiss
<yoavwe...@chromium.org> wrote:
https://github.com/w3c/csswg-drafts/issues/8922#issuecomment-1720930646
indicates that some parts of this were resolved and other
parts are still to be bikeshedded.
Can you expand on that? What's the issue around color space
interpolation?
In my response further down in the thread I untangled that
<https://github.com/w3c/csswg-drafts/issues/8922#issuecomment-1792237695>.
There are two situations in which we need an explicit color space
representation:
1) In mixing two palettes, to describe it as a static state, when
an animation or transition has completed or when we're describing
an interim state of an animation or transition. For this, we need
an explicit interpolation method in the grammar of palette-mix() -
to be consistent with color-mix() and to prepare to capture a
static interpolation value when animations will have color space
control, see below.
The "remaining bike shedding to be done" that's captured in the
notes solely originated from a question from emilio@ on whether
that color interpolation tag is needed. Munira and I discussed
that with him in the directly follow break at resolution at TPAC -
but that was offline and not minuted. I am expecting emilio@ to
comment on this - otherwise there was nothing open.
2) What needs to be discussed as a wider issue in CSS is
controlling the interpolation method during animation or
transitions, but that's outside the scope of the issue we resolved
on. Interpolation color space control during animations and
transitions are discussed in#7741
<https://github.com/w3c/csswg-drafts/issues/7741> and #7063
<https://github.com/w3c/csswg-drafts/issues/7063>.
I'll ping Emilio again to comment on the issue. Assuming that
happens, I really see no blockers at all, and Chris Lilley seems
to agree with us on that.
Dominik
On Thursday, November 9, 2023 at 4:02:34 PM UTC+1
moo...@google.com wrote:
Submitted:
* TAG review:
https://github.com/w3ctag/design-reviews/issues/915
* Requested signals from the other vendors:
o Gecko:
https://github.com/mozilla/standards-positions/issues/925
o Webkit:
https://github.com/WebKit/standards-positions/issues/276
Thank you, Daniel!
On Wed, Nov 8, 2023 at 4:52 PM Daniel Bratell
<bratel...@gmail.com> wrote:
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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