LGTM3, seconding the request to remove Issue 3 or move/update it so it's 
clear which parts it still covers.

On Tuesday, February 25, 2025 at 7:43:36 AM UTC-8 mike...@chromium.org 
wrote:

> LGTM2, but can you remove inline issue 3 from the spec if it's no longer 
> relevant? It's confusing otherwise.
> On 2/25/25 2:23 AM, Daniel Bratell wrote:
>
> LGTM1
>
> /Daniel
> On 2025-02-20 10:15, Daniil Sakhapov wrote:
>
> The discussion for *progress() functions is finished, with WebKit already 
> supporting it and Gecko implementing.
> The warning is about *mix() functions and the discussion in the issue is 
> about only them as well.
>
> среда, 19 февраля 2025 г. в 20:43:15 UTC+1, dan...@microsoft.com: 
>
>> The spec section https://drafts.csswg.org/css-values-5/#progress still 
>> has this warning at the top: *“This section is an exploratory draft, and 
>> not yet approved by the CSSWG *[Issue #6245] 
>> <https://github.com/w3c/csswg-drafts/issues/6245>*”.*
>>
>>  
>>
>> Scanning through the linked issue I’m unclear on whether that warning 
>> still applies or whether the CSSWG resolved at some point on the subset of 
>> behavior that’s proposed to ship here. Can you help me understand the 
>> degree to which the discussion around these has reached a conclusion? I see 
>> that there are still new posts happening in that issue in the past week.
>>
>>  
>>
>> Thanks,
>>
>> Dan
>>
>>  
>>
>> *From:* 'Penelope McLachlan' via blink-dev <blin...@chromium.org> 
>> *Sent:* Wednesday, February 19, 2025 10:16 AM
>> *To:* Daniel Bratell <brat...@gmail.com>
>> *Cc:* Daniil Sakhapov <sakh...@chromium.org>; blink-dev <
>> blin...@chromium.org>; Mike Taylor <mike...@chromium.org>; Chromestatus <
>> ad...@cr-status.appspotmail.com>
>> *Subject:* [EXTERNAL] Re: [blink-dev] Intent to Ship: Interpolation 
>> progress functional notations: CSS *progress() functions
>>
>>  
>>
>> Some other example use cases:
>>
>>  
>>
>> - Trigger layout changes as the user scrolls for storytelling or 
>> creative direction e.g. Create gradients that smoothly shift colors or 
>> positions based on scroll progress or container size, or apply filter 
>> effects like blur or saturation based on scroll position or container 
>> dimensions, creating dynamic visual effects.
>>
>> - Progress bars based on scroll position or container layout 
>>
>> - Adjust font sizes based on the viewport width or container size, for 
>> example to improve readability across different screen sizes.  
>>
>> e.g. h1 { font-size: calc(1rem + 2rem * media-progress(width, 320px, 
>> 1200px)); }
>>
>>  
>>
>>  
>>
>> On Wed, Feb 19, 2025 at 6:44 AM Daniel Bratell <brat...@gmail.com> wrote:
>>
>> I also find it a bit hard to understand what it is meant to accomplish 
>> and how it does so. I might be missing some basic knowledge block here, but 
>> ... why?
>>
>> Maybe when the tests are updated I can look at those, but if you were to 
>> explain this to someone like ... I don't know, a manager, how would you 
>> explain what it does?
>>
>> /Daniel
>>
>> On 2025-02-19 11:34, Daniil Sakhapov wrote:
>>
>> I imagine the use case example would be using e.g. container-progress 
>> inside color(), so that you can change the color, based on some ancestor 
>> parent's size - 'color: rgb(container-progress(width of my-container, 
>> var(--container-min-size), var(--container-max-size)), ..., ...);'
>>
>> Ah, for some reason we don't have 'In Progress' option for Gecko, only 
>> for Webkit, and the tool didn't copy my comment on that here, but they are 
>> working on it.
>>
>>  
>>
>> The test is failing as there has been minor synax change and it's been 
>> addressed on Monday, WPT hasn't been updated yet.
>>
>> вторник, 18 февраля 2025 г. в 20:24:40 UTC+1, Mike Taylor: 
>>
>> On 2/18/25 12:15 PM, Chromestatus wrote:
>>
>> Contact emails 
>>
>> sakh...@chromium.org 
>> Explainer 
>>
>> None 
>>
>> Could you describe what these features allow for (beyond what you have in 
>> the summary), maybe with some example code? It's not obvious to me what it 
>> means practically to represent proportional distance of a container 
>> feature, for example.
>>
>>
>>
>>  
>> Specification 
>>
>> https://drafts.csswg.org/css-values-5/#progress 
>> Summary 
>>
>> The progress(), media-progress(), and container-progress() functional 
>> notations represent the proportional distance of a given value (the 
>> progress value) from one value (the progress start value) to another value 
>> (the progress end value). They allow drawing a progress ratio from math 
>> functions, media features, and container features, respectively.
>>
>>  
>> Blink component 
>>
>> Blink>CSS 
>> <https://issues.chromium.org/issues?q=customfield1222907:%22Blink%3ECSS%22> 
>> TAG review 
>>
>> None 
>> TAG review status 
>>
>> Not applicable 
>> Risks 
>>
>>  
>> Interoperability and Compatibility 
>>
>> None
>>
>>
>>
>> *Gecko*: No signal 
>>
>> Can we request one please?
>>
>>
>>
>>
>> *WebKit*: Shipped/Shipping 
>>
>> *Web developers*: Strongly positive Mostly for calc() hacks like getting 
>> rid of units 
>>
>> *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 
>>
>> None
>>
>>  
>> 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-values/progress-computed.tentative.html 
>> https://wpt.fyi/css/css-values/media-progress-computed.tentative.html 
>> https://wpt.fyi/css/css-values/container-progress-computed.tentative.html
>>
>> These tests are all failing in Chromium. Any reason why? Also, they 
>> shouldn't be considered tentative tests now, correct?
>>
>>  
>> Flag name on about://flags 
>>
>> CSSProgressNotation 
>> Finch feature name 
>>
>> None 
>> Non-finch justification 
>>
>> None 
>> Requires code in //chrome? 
>>
>> False 
>> Tracking bug 
>>
>> https://issues.chromium.org/issues/40944203 
>> Estimated milestones 
>>
>> Shipping on desktop
>>
>> 135
>>
>> Shipping on Android
>>
>> 135
>>
>> Shipping on WebView
>>
>> 135
>>
>>  
>> 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/5112558941634560?gate=5096732792455168 
>>
>> This intent message was generated by Chrome Platform Status 
>> <https://chromestatus.com/>. 
>>
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>>  
>>
>> -- 
>>
>> *Penny McLachlan*
>>
>> (she/her)
>>
>> Senior Product Manager
>>
>> pjmcl...@google.com
>>
>> Google Chrome 
>>
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>>
>

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