SassColor.hwb constructor
Creates a color in ColorSpace.hwb.
If null
is passed for alpha
, that indicates that it's a missing
component. In most cases, this is equivalent to the color being
transparent.
Throws a RangeError if alpha
isn't between 0
and 1
.
Implementation
factory SassColor.hwb(num? hue, num? whiteness, num? blackness,
[num? alpha = 1]) =>
SassColor.forSpaceInternal(ColorSpace.hwb, hue?.toDouble(),
whiteness?.toDouble(), blackness?.toDouble(), alpha?.toDouble());