2.4.4.312 ShapeShdwBlur
The ShapeShdwBlur cell is a vLength custom token grouping that specifies the blur of a shadow effect set of a shape. It MUST have a ShapeSheet_Type or StyleSheet_Type parent element.
The value of the structure MUST be greater than or equal to zero, and equal or less than (100.0 / 72.0) points.