LGTM3 On Tue, Sep 8, 2026 at 10:49 PM Rick Byers <[email protected]> wrote:
> LGTM2 > > On Mon, Sep 7, 2026 at 5:22 PM Philip Jägenstedt <[email protected]> > wrote: > >> LGTM1 >> >> On Fri, Sep 4, 2026 at 10:39 PM Chromestatus < >> [email protected]> wrote: >> >>> *Contact emails* >>> [email protected] >>> >>> *Specification* >>> >>> https://html.spec.whatwg.org/multipage/canvas.html#colour-spaces-and-colour-correction >>> >>> *Summary* >>> Add srgb-linear and display-p3-linear color spaces (as defined by CSS) >>> to PredefinedColorSpace for use with canvases. >>> >>> *Blink component* >>> Blink>Canvas >>> <https://issues.chromium.org/issues?q=customfield1222907:%22Blink%3ECanvas%22> >>> >>> *Web Feature ID* >>> canvas-2d-color-management >>> <https://webstatus.dev/features/canvas-2d-color-management> >>> >>> *Motivation* >>> Linear color spaces (where pixel values correspond linearly to >>> luminance) are extremely commonly used in applications with connections to >>> physical light rendering (e.g, games) or spatial processing (e.g, >>> decimation, anti-aliasing, and interpolation). >>> >>> *Initial public proposal* >>> *No information provided* >>> >>> *TAG review* >>> https://github.com/w3ctag/design-reviews/issues/1194 (Note that this is >>> for the full HDR on the web project, which this is a part of) >>> >>> *TAG review status* >>> Issues addressed >>> >>> *Goals for experimentation* >>> None >>> >>> *Risks* >>> >>> >>> *Interoperability and Compatibility* >>> *No information provided* >>> >>> *Gecko*: No signal >>> >>> *WebKit*: Positive Suggested by WebKit, already implemented in WebKit. >>> >>> *Web developers*: Positive Partners have repeatedly requested linear >>> working color spaces >>> >>> *Other signals*: >>> >>> *Ergonomics* >>> None >>> >>> *Activation* >>> None >>> >>> *Security* >>> None >>> >>> *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? >>> *No information provided* >>> >>> >>> *Debuggability* >>> The corresponding CSS color spaces are supported in DevTools (DevTools >>> does not have any features related to canvas bitmap color spaces). >>> >>> *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 >>> API tests (setting and getting): >>> https://wpt.fyi/results/html/canvas/element/manual/context-attributes/getContextAttributes.html >>> Draw-and-readback tests: >>> https://wpt.fyi/results/?label=experimental&label=master&aligned&q=2d.color.space >>> Chromium CLs: >>> https://chromium-review.git.corp.google.com/c/chromium/src/+/8313909 >>> Roundtrip tests (toDataURL, toBlob, etc): >>> https://chromium-review.git.corp.google.com/c/chromium/src/+/8312949 >>> https://chromium-review.git.corp.google.com/c/chromium/src/+/8314209 >>> >>> *Flag name on about://flags* >>> *No information provided* >>> >>> *Finch feature name* >>> ColorSpacePredefinedLinearSpaces >>> >>> *Rollout plan* >>> Will ship enabled for all users >>> >>> *Requires code in //chrome?* >>> False >>> >>> *Tracking bug* >>> https://issuetracker.google.com/issues/454152417 >>> >>> *Availability expectation* >>> Feature is available on Web Platform Baseline within 12 months of launch >>> in Chrome. >>> >>> *Adoption expectation* >>> Feature is considered a best practice for some use case within 12 months >>> of reaching Web Platform baseline. This is a very common space for >>> physically-based rendering applications in WebGL and WebGPU. >>> >>> *Adoption plan* >>> None. >>> >>> *Non-OSS dependencies* >>> >>> Does the feature depend on any code or APIs outside the Chromium open >>> source repository and its open-source dependencies to function? >>> None >>> >>> *Estimated milestones* >>> Shipping on desktop 155 >>> Shipping on Android 155 >>> Shipping on WebView 155 >>> >>> *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). >>> A further color space in this class (either rec2100-linear or >>> rec2020-linear) has been requested but is not added in this feature. That >>> particular space has controversies that neither of these do, which we need >>> to be very careful to get right. >>> >>> *Link to entry on the Chrome Platform Status* >>> https://chromestatus.com/feature/5122501071994880?gate=6522766912258048 >>> >>> 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/6a9b2c7c.81999fdc.db953.0248.GAE%40google.com >>> <https://groups.google.com/a/chromium.org/d/msgid/blink-dev/6a9b2c7c.81999fdc.db953.0248.GAE%40google.com?utm_medium=email&utm_source=footer> >>> . >>> >> -- >> 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/CAARdPYcZxSK2bsWDyVTS%3DKt5g3ZW68xMT94dvafwo5WAB667BA%40mail.gmail.com >> <https://groups.google.com/a/chromium.org/d/msgid/blink-dev/CAARdPYcZxSK2bsWDyVTS%3DKt5g3ZW68xMT94dvafwo5WAB667BA%40mail.gmail.com?utm_medium=email&utm_source=footer> >> . >> > -- > 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/CAFUtAY9At82FsT20sesHNooDaeuA1qwrCYvZTtdbq4nk8Su6Bg%40mail.gmail.com > <https://groups.google.com/a/chromium.org/d/msgid/blink-dev/CAFUtAY9At82FsT20sesHNooDaeuA1qwrCYvZTtdbq4nk8Su6Bg%40mail.gmail.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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