|Gets how dark or light one color gradients shade to as a floating point number.|
|Syntax:||VARIANT = object.GradientDegree|
|Description:||For GefGradientOneColor, this property
specifies how dark the color is. A value of zero means that black
is mixed in with the shape's foreground color to form the
A value of one means that white is mixed in.
Values between zero and one mean that a darker or lighter shade of the foreground color is mixed in.