private IEnumerator ColorGradient(Color targetColor, float gradientDuration)
{
while (spriteRenderer.color != targetColor)
{
spriteRenderer.color = Annex.toColor(Vector3.SmoothDamp(Annex.toVector3(spriteRenderer.color), Annex.toVector3(targetColor), ref colorSmoothing, gradientDuration));
yield return(null);
}
}