Re: [csswg-drafts] [css-transitions] clarify that the `all` keyword used in `transition-property` applies to custom properties (#8456)

I don't think it's observable whether `all` includes discrete properties or not, since they won't be [transitionable](https://drafts.csswg.org/css-transitions/#transitionable) anyways:

> When comparing the [before-change style](https://drafts.csswg.org/css-transitions/#before-change-style) and [after-change style](https://drafts.csswg.org/css-transitions/#after-change-style) for a given property, the property values are transitionable if they have an [animation type](https://drafts.csswg.org/web-animations-1/#animation-type) that is neither [not animatable](https://drafts.csswg.org/web-animations-1/#not-animatable) nor [discrete](https://drafts.csswg.org/web-animations-1/#discrete).

The difference is that, if `all` covers custom properties, then registered custom properties may not be discrete and then transition. As said in #8024, this is not happening in Blink, which makes sense since custom properties are not longhands of the `all` shorthand.

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Received on Friday, 17 February 2023 13:43:03 UTC