Sets the layout background as the background of the slide.
This method doesn't have any parameters.
builder.CreateFile("pptx");
var oPresentation = Api.GetPresentation();
var oSlide = oPresentation.GetSlideByIndex(0);
var oMaster = oPresentation.GetMaster(0);
var oLayout = oMaster.GetLayout(0);
var oFill = Api.CreateSolidFill(Api.CreateRGBColor(255, 111, 61));
oLayout.SetBackground(oFill);
oSlide.FollowLayoutBackground();
builder.SaveFile("pptx", "FollowLayoutBackground.pptx");
builder.CloseFile();