Function
The learner's name, for the initials preview
A single-choice group with radio semantics. Only the checked option is a tab stop; the arrow keys move the choice and the focus together, wrapping at either end, as a native radio group does.
The initials option previews the learner's own initials, so it updates as the name above it is typed.
Controlled: the picker never stores a choice, it reports one.
Picks the learner's avatar: their initials or one of eight illustrations.