[css-mediaqueries-4] should color-gamut be evaluated in a boolean context? #7121
Description
At https://www.w3.org/TR/mediaqueries-4/#mq-boolean-context the spec says
media features [...] can also be written more simply as just the feature name, like
(color).When written like this, the media feature is evaluated in a boolean context.
If the feature would be true for any value other than the number 0, a with the value 0, or the keyword none, the media feature evaluates to true.
And about color gamut it says (in https://www.w3.org/TR/mediaqueries-4/#color-gamut):
Note: Some output devices, such as monochrome displays, cannot support even the srgb gamut. To test for these devices, you can use this feature in a negated boolean-context fashion:
not (color-gamut).
If this is the case, then surely it would be impossible for color-gamut to evaluate as false, as it doesn't support 0 or none
These two sections contradict each other - which one is true? If it's the not (color-gamut) should the boolean context section be changed?