Mentions

A textarea that opens a suggestion list after a trigger character, for @ mentions and anything else keyed the same way.

Anotomy

Structure of the mentions field and how its internal parts are composed. These are its semantic parts, so they are also what the classNames and styles objects accept. Unlike Select, popup is a plain string here, not a nested object.
Mentions anotomy
NameDescription
1rootThe field's box: border, background, radius and padding. variant and status change it here.
2textareaThe real <textarea> the user types in. autoSize lets it grow with the text.
3suffixThe trailing area, holding the clear button when allowClear is set.
4popupThe suggestion list that opens after a prefix character, from options. It renders in a portal, so this key is how you reach it. placement opens it above or below.