Genesys Cloud enables administrators to customize the knowledge portal appearance through the Admin tab by accessing Menu > Digital and Telephony > Message > Messenger Configurations. Users with appropriate licensing (CX 1 Digital Add-on II through CX 4, or CX AI Experience) and specific permissions—including Architect Flow management, Routing Message management, Queue operations, and Web Deployments configuration access—can modify portal styling elements. The customization interface allows configuration of three primary visual components: header background color, global background color, and primary color. This functionality requires an active knowledge portal and is managed through the Messenger Configurations tab, where administrators select the specific configuration to edit and adjust appearance settings accordingly.