final String themeId = theme.get("id").toString();
String fileName = theme.get("file").toString();
if (!fileName.contains("gxt-all.css")) {
CSS.addStyleSheet(themeId, fileName);
}
bodyEl.addStyleName("x-theme-" + themeId);
Theme t = ThemeManager.findTheme(themeId);
t.init();
StateManager.get().set(GWT.getModuleBaseURL() + "theme", theme);