Clay.Gradient
type Ramp
linearGradient
hGradient
vGradient
data Radial
circle
ellipse
circular
elliptical
data Extend
closestSide
closestCorner
farthestSide
farthestCorner
radialGradient
repeatingLinearGradient
hRepeatingGradient
vRepeatingGradient
repeatingRadialGradient