- From: Guillaume via GitHub <sysbot+gh@w3.org>
- Date: Thu, 12 Oct 2023 19:35:07 +0000
- To: public-css-archive@w3.org
cdoublev has just created a new issue for https://github.com/w3c/csswg-drafts: == [css-colors-5] Serialization of a relative color functions as component of specified values == I do not expect the following to apply in a specified value: > The serialization of the result of a relative color function is **the resolved value**. https://drafts.csswg.org/css-color-5/#serial-relative-color But the [WPT tests](https://github.com/web-platform-tests/wpt/blob/master/css/css-color/parsing/color-valid-relative-color.html) do. Perhaps the intention is actually to test resolved values (`getComputedStyle()`) instead of specified values (`getPropertyValue()`). In these tests, relative sRGB functions serialize as resolved `color(srgb ...)` and other relative functions serialize as the corresponding resolved function: `lab(from <color> ...)` as `lab(...)`, `lch(from <color> ...)` as `lch(...)`, etc. `currentcolor` prevents resolving. Math functions are resolved whereas they are preserved when serializing an "absolute" color functions. [`color-mix()` serializes as is](https://drafts.csswg.org/css-color-5/#serial-color-mix): > The serialization of the specified value of a `color-mix()` function is the string `"color-mix(in "`, followed by [...] So I am not sure what is the expected serialized value for eg. `rgb(from color-mix(...) ...)`. If these tests are actually a work in progress, I suggest preserving the details of the value as specified by its author, and being consistent with the serialization of "absolute" color functions: 1. map `<percentage>`, `<hue>`, `<alpha-value>`, to `<number>`, excluding in math functions, which are preserved 2. clamp `<number>` when required 3. normalize `<number>` representing a `<hue>` in `[0,360)` 4. normalize `xyz` to `xyz-d65` Please view or discuss this issue at https://github.com/w3c/csswg-drafts/issues/9464 using your GitHub account -- Sent via github-notify-ml as configured in https://github.com/w3c/github-notify-ml-config
Received on Thursday, 12 October 2023 19:35:09 UTC