- From: Sam Weinig via GitHub <noreply@w3.org>
- Date: Sat, 20 Dec 2025 19:14:06 +0000
- To: public-css-archive@w3.org
weinig has just created a new issue for https://github.com/w3c/csswg-drafts: == [css-animations] Add a `animation-color-interpolation-method` (or similar) property to allow specifying an interpolation space for animations == It would be useful to have some way to specify what color interpolation method is used when animating CSS colors. Currently, all animations are defined to happen in the default interpolation color space, Oklab, but, just like with CSS gradients and color-mix(), there are times when alternative interpolation spaces might be useful. One contrived example would be that one might want to use sRGB to match a legacy animation. To control this, I propose a new CSS property, `animation-color-interpolation-method` (perhaps named something less verbose), with the grammar: ``` <'animation-color-interpolation-space'> = <color-interpolation-method># ``` (`<color-interpolation-method>` is defined https://drafts.csswg.org/css-color-5/#color-interpolation-method) Like other `animation-*` properties, it would contribute to the coordinated value list based on `animation-name` (https://www.w3.org/TR/css-animations-2/#animation-definition). My intuition tells me that modeling it after `animation-timing-function` (https://www.w3.org/TR/css-animations-1/#propdef-animation-timing-function) would make sense, allowing a default interpolation method to be set, as well as allowing it to be specified in a `<keyframe-block>`. Obviously a lot more would need to be worked out, including introducing the concept at the Web Animations model and considering what to do about transitions. (cc @graouts) Please view or discuss this issue at https://github.com/w3c/csswg-drafts/issues/13255 using your GitHub account -- Sent via github-notify-ml as configured in https://github.com/w3c/github-notify-ml-config
Received on Saturday, 20 December 2025 19:14:07 UTC