Changes

* '''Screen''' – Inverts pixels, multiplies and inverts a second time. Results in lighter particle effects.

* '''Replace''' – No blending with the background. Only the particle’s colors are used.

== Experimenting with the Particle Emitter Editor ==

== Bursting a Ball using Particle Emitter Effects ==

The final task is to update the SpriteKitDemo game so that the balls burst when they are hit by an arrow shot by the archer sprite.