title: SKEmitterNode settings not appearing
body: <p>I created an sks file with the settings I want it to have, and when I call the method of adding the node onto the scene, the emitter particles don't look anything similar to what I set up. Any reason why?</p>
  <pre><code>-(SKEmitterNode *)emitParticles
  {
  SKEmitterNode *emitter = [NSKeyedUnarchiver unarchiveObjectWithFile:[[NSBundle mainBundle] pathForResource:@&quot;explosionParticles&quot; ofType:@&quot;sks&quot;]];
  emitter.position = CGPointMake(self.size.width/2, self.size.height/2);
  emitter.targetNode = self.scene;
  [self addChild:emitter];
  return emitter;
  }
  </code></pre>
  <p><img src="https://i.stack.imgur.com/TthtH.png" alt="What I want" /></p>
  <p>What I want.</p>
  <p><img src="https://i.stack.imgur.com/gRtmf.png" alt="enter image description here" /></p>
  <p>What I get.</p>