private void UpdatePivotPrevButtons(Thickness thickness)
        {
            var control  = InnerPivotManga.FindDescendantByName("PreviousButton");
            var control1 = InnerPivotAnime.FindDescendantByName("PreviousButton");


            if (control1 != null)
            {
                control1.Margin = thickness;
            }
            if (control != null)
            {
                control.Margin = thickness;
            }
        }
        private void UpdatePivotHeaders(Thickness thickness)
        {
            var control  = InnerPivotManga.FindDescendantByName("HeaderClipper");
            var control1 = InnerPivotAnime.FindDescendantByName("HeaderClipper");


            if (control1 != null)
            {
                control1.Margin = thickness;
            }
            if (control != null)
            {
                control.Margin = thickness;
            }
        }