init(gradient: Gradient, startPoint : UnitPoint , endPoint : UnitPoint )
Creates a linear gradient from a base gradient.
init(colors: [Color], startPoint : UnitPoint , endPoint : UnitPoint )
Creates a linear gradient from a collection of colors.
init(stops: [Gradient.Stop], startPoint : UnitPoint , endPoint : UnitPoint )
Creates a linear gradient from a collection of color stops.