In this tutorial, I am talking about page banner. Banner section background color depends on your theme color. Now, I will explain you. How to manage banner? Refer the screenshot.
1. How to manage Page/Post Banner?
You can see page banner below on the menu. By default page banner is disabled, you need to enable it. When you create any page/post, you will found banner settings below in the page editor. Now, I will explain to you, How to display any pages/posts. Refer the screenshot.
2. How to manage other pages banner?
I explained in above step to managing pages/posts banner. Now I will explain to you, How to handle other pages banners like Archive pages and taxonomy. Refer the screenshot.