The fill of the group the shape is a member of (<a:grpFill/>): resolved by walking the shape's parents to the nearest group that states a fill, else the shape's theme style.
<a:grpFill/>
Optional
IFill.getType
The fill of the group the shape is a member of (
<a:grpFill/>): resolved by walking the shape's parents to the nearest group that states a fill, else the shape's theme style.