The theming support in the XHTML renderer is the same as that of the Page Template Renderer. Any template directory can have a subdirectory called ‘Themes’ which contains theme directories with sets of templates in them. The names of the directories in the ‘Themes’ directory corresponds to the name of the theme. There are currently two themes included with plasTeX: default and plain. The default theme is a minor variation of the one used in the Python 1.6 documentation. The plain theme is a theme with no extra navigation bars.