private async void selectImageToEmbedWith_OnClick(object sender, RoutedEventArgs e)
        {
            try
            {
                _embedImageFile = await SelectSourceImageFile();

                EmbedDisplay = await ToImageConverter.Convert(_embedImageFile, EmbedDisplay);

                _embedImage = ToWriteableBitmapConverter.ConvertToWriteableBitmap(EmbedDisplay);
            }
            catch (Exception)
            {
                await FailedSelectionDialog();
            }
        }
        private async void selectSourceImage_OnClick(object sender, RoutedEventArgs e)
        {
            try
            {
                _sourceImageFile = await SelectSourceImageFile();

                ImageDisplay = await ToImageConverter.Convert(_sourceImageFile, ImageDisplay);

                _sourceImage = ToWriteableBitmapConverter.ConvertToWriteableBitmap(ImageDisplay);
            }
            catch (Exception)
            {
                await FailedSelectionDialog();
            }
        }