void AnimateAndFill() {

  static uint8_t FrameCounter = 0;  //counts frame for steps measure.
  uint8_t AnimationIndex;
  uint8_t AnimationAndSpeed;

  // Effect speed global, nudges everything from left to right!
  static int effectSpeed = 0;  //animation speed, This is not the speed you want to set. use SpeedIndex!

  // NoiseDistanceJump += 5;  // beatsin8(10,1,4);  //noise movement speed: bpm,lowest,highest.

    if (0 < SpeedIndex && SpeedIndex < 20) {
    if(FrameCounter % (20 - SpeedIndex) == 0 ) //slowing down animation by waiting x frames with the update. So, speedIndex 1 means wait 20 frames before incrase step.
    { effectSpeed++; FrameCounter = 0; }
  }
  else if (SpeedIndex >= 20) {
  effectSpeed += SpeedIndex - 19;
  }
  FrameCounter++;


  for( int i = 0; i < NUM_LEDS; i++) {


  switch (AnimationMethod) {
  case 0: AnimationIndex = 0; break;
  case 1: AnimationIndex = inoise8(i*AnimScale,NoiseDistanceJump+i*AnimScale) % 255; break;
  case 2: AnimationIndex = sin8((i+SineOnePhase)*SineOneWaveLenght)*SineOneAmplitude + sin8((i+SineTwoPhase)*SineTwoWaveLenght)*SineTwoAmplitude; break;
  }

    if(Reverse) {AnimationAndSpeed = AnimationIndex - effectSpeed;}
      else  {AnimationAndSpeed = AnimationIndex + effectSpeed;}

      leds[i] = ColorFromPalette(CostumPalette, AnimationAndSpeed, 255);
      }
}