[css-color-5] Does <hue-interpolation-method> always default to shorter hue?

shorter hue must be assumed when omitted after <polar-color-space>, in the serialization algo for <color-mix()> in a declared value.

Does this apply in other contexts? (color-interpolate(), gradients, palette-mix())

If so, wouldn't it be appropriate to define this explicitly in § 9.1. Color Space for Interpolation?

Unless otherwise specified, if no specific hue interpolation algorithm is selected by the host syntax, the default is shorter.

However, to make things clearer, I

In general, this sort of issue is a consequence of CSS Color 5 being a diff spec.

Omit "shorter hue" in <color-interpolation-method>

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