Default of 0.5 (or non-zero) for Gradient Mix Factor

For a Grease Pencil object in Properties editor > Material tab > Surface > Fill > Style: Gradient - the default Mix Factor is currently 0.000.

With this setting the fill on a drawing just displays as the solid Secondary Color.

For the benefit of new users I think it would be better to have the default Mix Factor value be 0.5 or something so that the fill displays as a gradient rather than a solid color.