export interface ColoredPart {
    off: string;
    /** e.g. "#DCDCDC" — a 6-digit hex color, no alpha. */
    colorHex: string;
}
export declare function buildMultiColor3mf(parts: ColoredPart[]): Uint8Array;
export declare function downloadMultiColor3mf(parts: ColoredPart[], filename: string): void;