1. Anything except the Modal are not belong to the built-in UI.
2. The built-in UI doesn't contain the dark theme, what you saw is defined by the demo site via CSS variables.
3. CTRL+K or click the search button to search on modal.
4. Search on single page via form below.
[zh-hant] Test Post #7
Hugo Client Side Fuzzy Search Module
A powerful, flexible and responsive Hugo client side fuzzy search module built on top of Fuse.js. Please check out the documentation for details.