I added an ImageView called BackgroundPicture to the designer, sent it to the background and loaded a jpg picture in code with:
fireworkspic = LoadBitmap(File.DirAssets, "fireworks.jpg")
BackgroundPicture.Bitmap = fireworkspic
It display fine but if I try to take a screenshot in debug mode, debug mode crashes and no screenshot is taken.
If I don't load the picture it takes the screenshot fine.
I have experimented with different sizes of the ImageView, but no difference.