Update relative color parsing to latest spec #465
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The CSS spec was updated in w3c/csswg-drafts#7876 to treat many channel values as only numbers rather than percentages or numbers for the purposes of calculations in relative colors. This is a breaking change since it no longer allows syntax like
calc(l + 10%)
, you need to docalc(l + 10)
orcalc(l * 1.1)
depending on what you want to do. In addition, the range of each channel is different, for examplel
is 0-100 in lch, but 0-1 in oklch.Unfortunately, we did not ship relative color syntax under a draft flag, so if we release this change in a minor version it might be an unexpected breaking change. Haven't decided what to do here yet.