import type { AvatarSize } from './mud-avatar.types';
import type { IconSize } from '../mud-icon/mud-icon.types';
/**
 * Maps the avatar `size` rung to the icon glyph size in CSS pixels.
 *
 * The avatar slot is a circle whose diameter is the rung value
 * (24 / 32 / 40 / 48 / 72 px); the glyph inside follows `mud-icon`'s scale
 * (16 / 20 / 24 / 32 px). These values mirror the `--avatar-icon-size-*`
 * tokens, which carry the glyph box Figma draws in set 203:2112 — note that
 * `xl` keeps the 24px glyph instead of growing with the circle.
 */
export declare const ICON_SIZE_FOR: Record<AvatarSize, IconSize>;
/**
 * Derives initials from a person's full name. Returns at most two characters,
 * uppercased. Returns an empty string for blank input.
 *
 * The split happens on whitespace or hyphens so compound first names
 * (`Maria-Andreea Pop`) collapse to the first letter of the first segment
 * plus the first letter of the last segment.
 *
 * @example
 *   deriveInitials('Ion Popescu')          // 'IP'
 *   deriveInitials('Maria-Andreea Pop')    // 'MP'
 *   deriveInitials('Ștefan')               // 'Ș'
 *   deriveInitials('')                     // ''
 */
export declare function deriveInitials(name: string | undefined): string;