import type { Component, TUI } from "@elyracode/tui";
/**
 * Animated startup component that reveals the Elyra constellation logo
 * line by line with an orange gradient, holds briefly, then calls onComplete.
 */
export declare class StartupAnimation implements Component {
    private ui;
    private currentLine;
    private phase;
    private intervalId;
    private holdTimeoutId;
    private onComplete;
    private version;
    constructor(ui: TUI, version: string, onComplete: () => void);
    private start;
    stop(): void;
    invalidate(): void;
    private clearInterval;
    render(_width: number): string[];
}
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