 };
 
 Animation animations[] = {
+  // Beating heart
   { animateToBigHeart, 0.2 },
   { pause, 3 },
   { animateToSmallHeart, 0.4 },

  if (transitionElapsed < transitionDuration) {
    transitionElapsed += delta;

    // clamp
    if (transitionElapsed > transitionDuration)
      transitionElapsed = transitionDuration;
  }
  else {
    transitionCompleteCallback();

  { animateToLetterU, 0.2 },
  { pause, 1.5 },

  // Beating heart
  { animateToBigHeart, 0.5},
  { animateToSmallHeart, 0.4 },
  { animateToBigHeart, 0.5},
