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.
Name
Description
1
root
The field's box: border, background, radius and padding. variant and status change it here.
2
textarea
The real <textarea> the user types in. autoSize lets it grow with the text.
3
suffix
The trailing area, holding the clear button when allowClear is set.
4
popup
The 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.