The extent for gradient.
Defines where the gradient takes it's size.
Gradient center position.
A element relative coordinate. 0 to 1 coordinate space.
{ x: 0, y: 0 }
is bottom left.
{ x: 1, y: 1 }
is top right.
The shape for the gradient
Gradient color stops
Interface for all properties of a RadialGradientFillStyle.