/**
  * Affiche la liste des thèmes disponibles
  */
 public function processDefault()
 {
     $ppo = new CopixPPO();
     $ppo->TITLE_PAGE = _i18n('themes.titlePage.selectTheme');
     $arThemes = CopixTpl::getThemesList();
     $arThemesInfos = array();
     $ppo->arThemes = array();
     foreach ($arThemes as $theme) {
         $ppo->arThemes[] = CopixTpl::getThemeInformations($theme);
     }
     $ppo->selectedTheme = CopixConfig::get('defaultThemeId');
     return _arPPO($ppo, 'theme.list.tpl');
 }