Over 50 themes, nicely styled for Apple TV. Language settings allow you to view time in English, English (24 hour), Spanish, French, Swahili, and Swahili (Congo).
To change the theme, swipe up on the remote then hover over "Style" and press the remote button. Simply scroll to the theme you want, then click it.
To change the language, swipe up on the remote then hover over "Language" and press the remote button. Choose the language you desire.