/**
 * avatar - pure helpers behind <SvAvatar>: derive up-to-two-letter initials from
 * a name, and a stable hue from a string so the same name always gets the same
 * fallback colour. Framework-free + pure so they are unit-tested directly.
 */
/** Up to two uppercase initials for `name` (first + last word, or first two
 *  letters of a single word). Empty string for blank input. */
export declare function avatarInitials(name: string): string;
/** Deterministic hue (0-359) derived from a string, for the fallback tint. */
export declare function avatarColorHue(name: string): number;