I'm using different images as background for the slides so I'd like to make the text boxes /rectangle border transparent/no color - regardless of the specific background image color Kindly guide me how to do that.
Thank you in advance!
RectangleF rect = new RectangleF(0, 0, presentation.SlideSize.Size.Width, presentation.SlideSize.Size.Height);
presentation.Slides[0].SlideBackground.Fill.FillType = FillFormatType.Picture;
IEmbedImage image = presentation.Slides[0].Shapes.AppendEmbedImage(ShapeType.Rectangle, ImageFile, rect);
image.Line.FillFormat.FillType = FillFormatType.None;
presentation.Slides[0].SlideBackground.Fill.PictureFill.Picture.EmbedImage = image as IImageData;