Learn how to add a featured image to a post or page. This will also override the website header image.
Step one: Select “Customize” from he admin toolbar.
Step Two: Select “Header Image” from the options panel.
Step Three: Select “Add new image” and upload or choose an image to use as the banner.
Header images have a few options for display.
Step Four: Publish the header image. It will be visible on all pages throughout the website.