the rectangle to render the linear gradient into
the point at which the linear gradient will begin
the point at which the linear gradient will finish
a pointer to an array of GskColorStop defining the gradient. The offsets of all color stops must be increasing. The first stop's offset must be >= 0 and the last stop's offset must be <= 1.
A new GskRenderNode
ConstructionException GTK+ fails to create the object.
Creates a GskRenderNode that will create a linear gradient from the given points and color stops, and render that into the area given by @bounds.