Themes 

An ITS service can also be sub-divided into themes, which are instances of the service that differ only in their look and feel (that is, layout, graphics, or language). Each theme has its own set of HTML templates and other service files, but the functionality of the service is the same for all themes. Themes have 2-character names.

To define a theme for a service description, you create a subdirectory for the theme in the service directory, using the SAP@Web Studio.

You can also specify a default theme for a service by inserting a ~theme service parameter in the service description. A service can have multiple themes, but only one ~theme parameter should appear in the service description. You can override this parameter by supplying a different theme value in the URL at runtime.

A default theme 99 is defined globally for all services in the global service file global.srvc. This theme is provided by default at ITS installation, and is used when no other theme is specified for the particular service.