This is the traditional stronghold for deep customization.
For many organizations, Confluence is the beating heart of their internal knowledge—a repository for everything from onboarding guides to technical specifications. Yet, out of the box, most Confluence spaces look identical: a sea of "Confluence Blue," standard fonts, and a layout that screams "documentation" rather than "destination." confluence space themes
Atlassian is slowly moving toward "Smart Themes." In beta, you can see hints of themes that change based on the page status . This is the traditional stronghold for deep customization
For a true "website" feel, native tools usually fall short. This is where the Atlassian Marketplace becomes essential. Popular theming apps include: out of the box