WordPress.org

an example of wp-content/themes folder

the admin settings UI

the language setting in post writting UI

coding extract with 'international' text in 'xiliphone' theme

xili-dictionary: Admin Tools UI - list of translated terms

xili-dictionary: Admin Tools UI - functionalities windows

xili-language: Admin Tools UI - pre-set default language of author according his browser's language.

xili-tidy-tags: Admin Tools UI - see this compatible plugin to group tags according languages

xili-language widget : Admin widgets UI - since 0.9.9.6, "multiple" languages list widget

xili-language: Special Admin UI sidebox - infos about theme's content for multilingual settings.