If a reader with either a slow device, or poor internet connection loads your Experios, they might have trouble loading large images. While Experios does tailor the images to the device its loading on, some connections are just too slow.
With this in mind, if you are creating large portions of text, covers, headlines or “hero” blocks, with a background image. The user might not see the text while the image is loading, or they might witness a very jarring flicker while the page transitions from having a white background to a background image.
Setting a background colour that complements your background image will reduce these negatives and create a better user experience overall, For all your readers.