Re: TAG review - we'll have a general TAG review for Carousel project, I'll 
include nested pseudos there.
Re tests: I'll add nested markers styling WPT tests.
Re getComputedStyle: thanks for pointing it out, I'll follow the issue 
since you've marked it as Agenda+
Re debuggability: I need to work with DevTools team to properly support 
displaying nested markers here, so won't ship without it.

среда, 13 ноября 2024 г. в 17:45:32 UTC+1, Chris Harrelson: 

> LGTM2
>
> On Wed, Nov 13, 2024 at 8:09 AM Mike Taylor <miketa...@chromium.org> 
> wrote:
>
>> LGTM1 % requesting the debuggability bit in your chromestatus entry.
>> On 11/7/24 11:39 AM, obr...@igalia.com wrote:
>>
>> While 
>> https://wpt.fyi/css/css-pseudo/marker-font-variant-numeric-normal.html 
>> uses nested ::marker, it's not the main point of the test.
>> In fact I was thinking of editing that test to allow it to pass on 
>> implementations that do not support nested ::marker, but never got to do it.
>> So I think you should add tests specifically for this.
>>
>> Also, I don't recall whether the flag allowed nested pseudo-elements in 
>> getComputedStyle, but I tend to think it should.
>> See https://github.com/w3c/csswg-drafts/issues/4456, it may need a quick 
>> CSSWG resolution to align with what was resolved for web animations.
>>
>> -- Oriol Brufau
>>
>> El dia dimecres, 6 de novembre del 2024 a les 13:55:58 UTC, 
>> sakh...@chromium.org va escriure:
>>
>>> Contact emails sakh...@chromium.org
>>>
>>> Explainer Nested pseudo elements styling allows to style 
>>> ::before::marker and ::after::marker pseudo elements and will be essential 
>>> to style ::column::scroll-marker pseudo elements for the carousel project (
>>> https://github.com/flackr/carousel/tree/main/fragmentation).
>>>
>>> Specification https://www.w3.org/TR/css-pseudo-4/#marker-pseudo
>>>
>>> Summary 
>>>
>>> Allows to style pseudo elements that are nested inside other pseudo 
>>> elements. So far, support is defined for: ::before::marker ::after::marker 
>>> With ::column::scroll-marker being supported in the future.
>>>
>>> Blink component Blink>CSS 
>>> <https://bugs.chromium.org/p/chromium/issues/list?q=component:Blink%3ECSS>
>>>
>>> TAG review None
>>>
>>> TAG review status Not applicable
>>>
>>> Risks 
>>>
>>> Interoperability and Compatibility 
>>>
>>> None
>>>
>>> *Gecko*: No signal (
>>> https://github.com/mozilla/standards-positions/issues/1109)
>>>
>>> *WebKit*: No signal (
>>> https://github.com/WebKit/standards-positions/issues/425)
>>>
>>> *Web developers*: No signals
>>>
>>> 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/css/css-pseudo/marker-font-variant-numeric-normal.html 
>>> ::column::scroll-marker tests are in wpt_internal for now
>>>
>>>
>>> Flag name on about://flags CSSNestedPseudoElements
>>>
>>> Requires code in //chrome? False
>>>
>>> Tracking bug https://issues.chromium.org/issues/373478544
>>>
>>> Estimated milestones 
>>> DevTrial on desktop 131 
>>> DevTrial on Android 131 
>>>
>>> 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/5199947786616832?gate=5142809487867904
>>>
>>> This intent message was generated by Chrome Platform Status 
>>> <https://chromestatus.com/>.
>>>
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