DropShadowFilter constructor
DropShadowFilter([])
Implementation
DropShadowFilter(
[this.distance = 8,
this.angle = pi / 4,
this.color = 0xFF000000,
int blurX = 4,
int blurY = 4,
int quality = 1,
this.knockout = false,
this.hideObject = false]) {
this.blurX = blurX;
this.blurY = blurY;
this.quality = quality;
}