message: Tidied up colors initialisation
diff: @@ -20,8 +20,7 @@ export default ({moveScene, stateNavigator}) => {
  <TouchableHighlight
  key={color}
  ref={el => {
  - if (!this.colors)
  - this.colors = {};
  + this.colors = this.colors || {};
  this.colors[color] = el;
  }}
  style={[
  