Drop Shadow dialog box
Smart ClipArt Editor – Effect tab – Add Effect button 
– Drop Shadow
Applies a drop shadow effect to the selected object.
Type
- Outer Shadow: Creates a shadow outside the object.
- Inner Shadow: Creates a shadow inside the object.
Offset X/Y
Sets the horizontal or vertical offset, respectively, of the shadow in pixels.
Color
Opens the Color Picker dialog box so you can select the color of the shadow.
Blur
Sets the degree of blurriness of the shadow.
Opacity
Specifies the opacity of the shadow. The unit used is percentage (%).