private void ShowStop(bool gray) { StopSprite.Visibility = System.Windows.Visibility.Visible; StartSprite.Visibility = System.Windows.Visibility.Collapsed; if (gray) { animatedCircle.Fill = DrawUtils.GetGrayBrush(); StopSprite.Fill = DrawUtils.GetGrayBrush(); } else { animatedCircle.Fill = DrawUtils.StopBrush; StopSprite.Fill = DrawUtils.StopBrush; } }