private bool MatchRectTransformWithBounds_lowVersionCompatablity(SkeletonGraphic skeletonGraphic)
        {
            skeletonGraphic.UpdateMesh();

            Mesh mesh = skeletonGraphic.GetLastMesh();

            if (mesh == null)
            {
                return(false);
            }

            if (mesh.vertexCount == 0)
            {
                skeletonGraphic.rectTransform.sizeDelta = new Vector2(50f, 50f);
                skeletonGraphic.rectTransform.pivot     = new Vector2(0.5f, 0.5f);
                return(false);
            }

            mesh.RecalculateBounds();
            var bounds = mesh.bounds;
            var size   = bounds.size;
            var center = bounds.center;
            var p      = new Vector2(
                0.5f - (center.x / size.x),
                0.5f - (center.y / size.y)
                );

            skeletonGraphic.rectTransform.sizeDelta = size;
            skeletonGraphic.rectTransform.pivot     = p;
            return(true);
        }
 void LateUpdate()
 {
     skeletonGraphic.UpdateMesh();
 }