The Theme Settings are where the site template content, default page banners, and other similar options are controlled.
Theme Settings
The options here are for content, links and images that appear in the header, footer, or theme template of the site, typically appearing on every page of the site.
Default Banners
Here is where the default banners for pages and content types are selected. Banners should be at least 1920 x 1080 in size. The image selected here will apply to all pages or content types unless an overriding banner is applied at the page level.
Content Type List Pages
This is where the listing pages for content types is declared to create proper site hierarchy for content type post pages. Be sure each content type is set to the appropriate, desired parent page.