Inner Shadow Filter
Intro
Add an inner shadow to Shapes to simulate depth.
UI
Blur Amount - Set the amount of blur for the shadow.
Offset - Offset the position of the shadow.
Spread - Expand or contract the shadow. Note that this uses a morphological technique which provides real-time performance but may result in slight inaccuracies for certain Shapes, particularly when a low Blur Amount is used.
Color - Set the color for the shadow.