Language menu
The Language menu element offers a language selector to your visitors. It relies on the languages activated on the Translations page: there's nothing to configure in the side panel.
Style
The style panel gathers the size and color of the selector, background, borders, corner radius, shadow, inner margins and transitions.
On the site, the button shows the flag and the code of the current language; clicking it opens the language switcher. The menu only makes sense if you've activated several languages on your site: with a single language, the click opens nothing.