The look and feel of the UDDI Registry user interface is determined by the styles defined in the .css files located in the following directory: install_root/profiles/profile_name/installedApps/cell_name/UDDIRegistry.node.server_name.ear/v3gui.war/theme.
Style class definitions in these files can be edited to alter the overall theme of the UDDI Registry user interface, including font attributes, layout and colors.