[css-color-5] Should there be a comma between mix-components in color-mix()?

[weinig]

In CSS Color 5's color-mix() function, https://drafts.csswg.org/css-color-5/#color-mix, should there be a comma between mix-components? For example, which of the following is correct:

color-mix(lch, red 40%, blue);

or

color-mix(lch, red 40% blue);

The grammar indicates no comma:

color-mix() = color-mix(<colorspace>?, <mix-component>#{2})
<mix-component> = <color> [ <percentage> | <color-adjuster>+ ]?

but all the examples have commas.

I personally think the comma makes it more readable.

[Loirooriol]

But the grammar indicates comma? <mix-component>#{2} has a hash mark which

indicates that the preceding type, word, or group occurs one or more times, separated by comma tokens

[weinig]

Ah, I missed that. Ok, then that clarifies things. Thanks.