LGTM1, looks like a useful addition already supported by other browsers. On Mon, Mar 2, 2026 at 3:06 PM 'Ragvesh Sharma' via blink-dev < [email protected]> wrote:
> *Contact emails* > *[email protected] <[email protected]>* > > *Specification* > *https://drafts.csswg.org/css-text-decor-4/#text-decoration-skip-ink-property > <https://drafts.csswg.org/css-text-decor-4/#text-decoration-skip-ink-property>* > > *Summary* > Add support for the `all` value for the CSS text-decoration-skip-ink > property, as specified in > *https://drafts.csswg.org/css-text-decor-4/#text-decoration-skip-ink-property > <https://drafts.csswg.org/css-text-decor-4/#text-decoration-skip-ink-property>*. > The `text-decoration-skip-ink` property already supports `auto` and `none`. > The `all` value extends this by unconditionally applying ink-skipping to > all glyphs - including CJK characters - whereas `auto` leaves CJK > characters un-skipped because ink-skipping tends to produce undesirable > visual results for ideographic scripts at typical underline positions. With > `text-decoration-skip-ink: all`, authors who have adjusted > `text-underline-position` or `text-underline-offset` to avoid clashing with > CJK glyphs can explicitly opt in to ink-skipping for those characters as > well. > > *Blink component* > *Blink>Fonts > <https://issues.chromium.org/issues?q=customfield1222907:%22Blink%3EFonts%22>* > > *Web Feature ID* > *text-decoration-skip-ink > <https://webstatus.dev/features/text-decoration-skip-ink>* > > *Motivation* > The `text-decoration-skip-ink` property controls whether underlines and > other text decorations skip over glyph ascenders and descenders to improve > readability. The current `auto` value intentionally does not apply > ink-skipping to CJK (Chinese, Japanese, Korean) scripts, as these > characters typically sit above the baseline and rarely intersect with > underlines. However, web developers working with mixed-script content or > specific CJK layouts sometimes need underlines to skip around all glyphs > uniformly, including CJK characters. Without the all value, developers have > no way to request this behavior - they must either accept inconsistent > decoration rendering across scripts or avoid using > `text-decoration-skip-ink` entirely. The `all` value gives authors explicit > control to request ink-skipping for all scripts, enabling consistent visual > treatment of underlined text regardless of language. This is particularly > useful for design systems that require uniform text decoration behavior > across multilingual content. Firefox and Safari already support this value, > making it an interoperability gap for Chrome. > > *Initial public proposal* > *No information provided* > > *TAG review* > *No information provided* > > *TAG review status* > Not applicable > > *Risks* > > > *Interoperability and Compatibility* > Very Low Risk. This feature adds a new keyword value (`all`) and does not > change the behavior of existing values (`auto`, `none`). Pages that do not > use `text-decoration-skip-ink: all` are completely unaffected. This feature > is already shipping in Firefox and Safari. Chrome is the last major browser > to implement this value. Shipping this feature improves interoperability > and closes a compatibility gap. The > *https://drafts.csswg.org/css-text-decor-4/#text-decoration-skip-ink-property > <https://drafts.csswg.org/css-text-decor-4/#text-decoration-skip-ink-property>* > defines > the `all` value, and there is consensus among browser vendors on its > behavior. > > *Gecko*: Shipped/Shipping > (*https://developer.mozilla.org/en-US/docs/Web/CSS/Reference/Properties/text-decoration-skip-ink#browser_compatibility > <https://developer.mozilla.org/en-US/docs/Web/CSS/Reference/Properties/text-decoration-skip-ink#browser_compatibility>*) > Fully > Supported since v75. Link: > *https://developer.mozilla.org/en-US/docs/Web/CSS/Reference/Properties/text-decoration-skip-ink#browser_compatibility > <https://developer.mozilla.org/en-US/docs/Web/CSS/Reference/Properties/text-decoration-skip-ink#browser_compatibility>* > > *WebKit*: Shipped/Shipping > (*https://developer.mozilla.org/en-US/docs/Web/CSS/Reference/Properties/text-decoration-skip-ink#browser_compatibility > <https://developer.mozilla.org/en-US/docs/Web/CSS/Reference/Properties/text-decoration-skip-ink#browser_compatibility>*) > Fully > Supported since v15.4. Link: > *https://developer.mozilla.org/en-US/docs/Web/CSS/Reference/Properties/text-decoration-skip-ink#browser_compatibility > <https://developer.mozilla.org/en-US/docs/Web/CSS/Reference/Properties/text-decoration-skip-ink#browser_compatibility>* > > *Web developers*: In the Chromium bug 9 people have upvoted for this > feature. > > *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. This is a new CSS property value (all) that existing content does > not use. The behavior of existing values (auto and none) is unchanged. > Sites must explicitly opt-in to the new behavior by specifying > text-decoration-skip-ink: all. There are no backwards compatibility > concerns. > > > *Debuggability* > Standard CSS DevTools support. The all value is already parseable behind > the experimental flag and visible in the Styles pane. No additional > DevTools work is needed. > > *Will this feature be supported on all six Blink platforms (Windows, Mac, > Linux, ChromeOS, Android, and Android WebView)?* > Yes > This feature is supported on all platforms where Chromium runs (Windows, > macOS, Linux, ChromeOS, Android). The implementation uses platform-agnostic > font APIs (GetTextIntercepts) to compute glyph outlines for ink-skipping, > which are already used for the existing auto value. No platform-specific > code paths are required. > > *Is this feature fully tested by **web-platform-tests > <https://chromium.googlesource.com/chromium/src/+/main/docs/testing/web_platform_tests.md>* > *?* > Yes > > Existing WPT tests already cover parsing of all: > - > external/wpt/css/css-text-decor/parsing/text-decoration-skip-ink-valid.html > — validates all as a valid value > - > external/wpt/css/css-text-decor/parsing/text-decoration-skip-ink-computed.html > — validates computed value > - > external/wpt/css/css-text-decor/parsing/text-decoration-skip-ink-invalid.html > — validates rejection of invalid values > > Visual rendering is covered by: > - fast/css3-text/css3-text-decoration/text-decoration-skip-ink-all.html > (Blink pixel test) > > *Flag name on about://flags* > *No information provided* > > *Finch feature name* > CSSTextDecorationSkipInkAll > > *Rollout plan* > Will ship enabled for all users > > *Requires code in //chrome?* > False > > *Tracking bug* > *https://issues.chromium.org/issues/40675832 > <https://issues.chromium.org/issues/40675832>* > > *Estimated milestones* > Shipping on desktop > 148 > Shipping on Android > 148 > Shipping on WebView > 148 > Shipping on iOS > 148 > > > *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).* > *No information provided* > > *Link to entry on the Chrome Platform Status* > *https://chromestatus.com/feature/5077600085082112?gate=6690394362478592 > <https://chromestatus.com/feature/5077600085082112?gate=6690394362478592>* > > This intent message was generated by *Chrome Platform Status > <https://chromestatus.com/>*. > > -- > You received this message because you are subscribed to the Google Groups > "blink-dev" group. > To unsubscribe from this group and stop receiving emails from it, send an > email to [email protected]. > To view this discussion visit > https://groups.google.com/a/chromium.org/d/msgid/blink-dev/SEYP153MB116960579D53783B0BBC8C83B173A%40SEYP153MB1169.APCP153.PROD.OUTLOOK.COM > <https://groups.google.com/a/chromium.org/d/msgid/blink-dev/SEYP153MB116960579D53783B0BBC8C83B173A%40SEYP153MB1169.APCP153.PROD.OUTLOOK.COM?utm_medium=email&utm_source=footer> > . > -- You received this message because you are subscribed to the Google Groups "blink-dev" group. 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