Added configurable dropshadow effect to Widgets, SubWidgets and Labels. Dropshadow properties can be found under the Display - Dropshadow category. You can choose to add a dropshadow to any Widget and control the shadow depth, opacity, blurriness, etc. You can also choose different colors to create a glow effect. NOTE: In most cases the 'Clip children' property must be disabled for the dropshadow to show. Clip children enabled means anything outside of the Widget bounds is hidden. Since the dropshadow is outside the bounds, Clip children must be disabled for it to show up.