I have a Storyline project with mixed backgound colors. Some slides have the default white background; others, a light blue background. When I preview a slide, a scene, or the entire project, the background of each slide displays the intended colors. Yet, when I publish the project, all pages have the light blue background. Can someone tell me what setting I may have inadvertently changed? I did not have this issue before I added some background color to some of the slides.