By default this banner appears on all top-level topic pages (latest/new/unread/top/categories… anything in the top menu site setting) but it can also be set to only display on a community’s homepage.
Show the banner on all top-level topic pages (default), just the homepage, or all pages
Show the banner for everyone, logged in, or logged out users
Set a background image (light mode and dark mode)
Custom styling
The HTML element gets a class named .display-search-banner wherever this banner appears, and the banner itself is wrapped with the .custom-search-banner class, so with some CSS you should be able to customize the appearance of this banner however you see fit.
Future enhancements
Add an option to enable the banner in specific categories
I like it and it comes with air theme… but there is a problem with the “welcome” header and “sub” text is white text on white background. Because Air Theme does not have css, I cannot change the colour.