Iterate through list and apply fade effect

Question

I have a list of images(Helper.theaterImagesInfo) that i am reading through a foreach loop and continuing infinite loop using while until a form closed. images display well with the code below

Application.DoEvents();
await Task.Delay(img.durationInMilliseconds);//img.durationInMilliseconds
this.PictureBox1.Image = img.ImageHere;

Now i want to implement fade effect to those images displaying. Each image is displayed after 5 seconds.

Function to apply fade:

   private int intCount = 0;
   private List<Bitmap> lstFade = new List<Bitmap>();
   private void ApplyFade(Bitmap imgTarget, Bitmap imgSource)
   {
            int intX = 0;
            int intY = 0;

            int intAmount = 10;

            Rectangle rctDest = new Rectangle(intX, intY,
               imgTarget.Width, imgTarget.Height);

            using (var tmpBitMap = new Bitmap(imgSource))
            using (var gTemp = Graphics.FromImage(tmpBitMap))

                for (int i = 0; i <= intAmount; i++)
                {
                    gTemp.DrawImage(imgSource, intX, intY);

                    ColorMatrix cmColors = new ColorMatrix();

                    cmColors.Matrix33 = System.Convert.ToSingle(i /
                       (double)intAmount);

                    ImageAttributes iaAttributes = new ImageAttributes();
                    iaAttributes.SetColorMatrix(cmColors);

                    gTemp.DrawImage(imgTarget, rctDest, intX, intY,
                       imgTarget.Width, imgTarget.Height, GraphicsUnit.Pixel,
                       iaAttributes);

                    lstFade.Add((Bitmap)tmpBitMap.Clone());
                }
      }

Timer:

      private void timer1_Tick(object sender, EventArgs e)
      {
            intCount += 2;

            if (intCount > 10)
            {
                timer1.Stop();
            }
            else
            {
                PictureBox1.Image = lstFade[intCount];

            }
        }

and here reading list and applying fade to images

public int x=1;
private async void TheaterForm_Shown(object sender, EventArgs e)
{
    if (this.PictureBox1.Image == null) SetDefaultImage();

    if (Helper.theaterImagesInfo != null && Helper.theaterImagesInfo.Count > 
       0)
    {
        while (x == 1)
        {
            foreach (var img in Helper.theaterImagesInfo.ToList())
            {
                if (img.IsAnimated)
                {
                    try
                    {
                        Application.DoEvents();
                        var imgS = new Bitmap(this.PictureBox1.Image);
                        await Task.Delay(img.durationInMilliseconds);
                        var imgT = new Bitmap(img.ImageHere);
                        ApplyFade(imgT, imgS);
                        intCount = 0;
                        timer1.Interval = 200;
                        timer1.Start();
                    }
                    catch { }
                }
                else
                {
                    try
                    {
                        Application.DoEvents();

                        await Task.Delay(img.durationInMilliseconds);
                        var imgS = new Bitmap(this.PictureBox1.Image);
                        var imgT = new Bitmap(img.ImageHere);
                        ApplyFade(imgT, imgS);

                        intCount = 0;
                        timer1.Interval = 200;
                        timer1.Start();

                    }
                    catch { }
                }
                if (this.x == 0)
                {
                    break; // exit the for loop early
                }
            }
        }

        SetDefaultImage();
    }
}

Problem Fade is applied between starting two images and then keep on the same fading process with those two images. Seems like ApplyFade function doesn't apply again the imgSource and imgTarget once passed through the parameter