Web TimePickers and DateTimePickers ignore FontName and FontSize in Safari

Web TimePickers ignore FontName and FontSize at runtime in Safari. The properties are accepted in the designer and the client sends them to the browser, but the native time input's appearance is fixed by the browser, so the picker always renders with the default system font. DateTimePicker is affected the same way. In Chromium-based browsers the fonts do apply, so the behaviour differs by browser.

Either the pickers should render the configured typography in every supported browser, or the documented limitation should be made explicit.