Re: [csswg-drafts] [css-color-4] [css-color-5] Mixing with `transparent` seems broken in implementations (#8612)

I am a bit confused what the issue is, because as far as I can tell this is just an implementation bug.

These are different linear gradients between `transparent` and `red` in different color spaces.

The background is also `red`.

This illustrates that a linear gradient between `transparent` and `red` does not mix in extra `black` at the midpoint. That `transparent` is `rgb(0 0 0 / 0)` isn't observable here. 

https://codepen.io/romainmenke/pen/dyQzxKP

<img width="1470" alt="Screenshot 2023-07-06 at 15 19 49" src="https://github.com/w3c/csswg-drafts/assets/11521496/dd74e3cf-88ee-48f0-81ea-f3ff5533c924">


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Received on Thursday, 6 July 2023 13:22:48 UTC