To install the Alfresco Keycloak Theme manually: Download the required zip version from https://github.com/Alfresco/alfresco-keycloak-theme/releases based on the compatible version listed in the Supported platforms page. Unzip the contents of the archive file. A single folder called alfresco is extracted. Move the alfresco folder inside the themes folder that’s located at the root of the Keycloak distribution.