/**
 * Gradient Animation Presets
 *
 * Defines shimmer effect presets for the GradientText component.
 * Creates a clean linear sweep effect — a highlight band that
 * oscillates left-to-right, similar to Claude Code's thinking animation.
 *
 * @since v1.52.0
 * @updated v2.4.3 - Simplified to linear sweep (removed multi-spot system)
 */
/**
 * Gradient preset names
 */
export type GradientPreset = 'success' | 'welcome' | 'premium' | 'sync' | 'thinking' | 'plus' | 'pro' | 'max';
/**
 * Animation speed names
 */
export type AnimationSpeed = 'slow' | 'normal' | 'fast';
/**
 * Shimmer preset definition for linear sweep animation
 */
export interface ShimmerPreset {
    /** Base color for most of the text (vibrant, not muted) */
    base: string;
    /** Mid-tone color for fade transitions */
    mid: string;
    /** Highlight color for the shimmer peak */
    highlight: string;
    /** Width of the sweep highlight band in characters */
    shimmerWidth: number;
}
/**
 * Shimmer presets - linear sweep animation with vibrant colors
 * Creates a clean sweep effect like Claude Code's thinking animation
 *
 * All colors are vibrant (no dark/muted tones like gray).
 * The shimmer only makes characters BRIGHTER, never darker.
 * Base = normal color, highlight = brightest (white glow)
 */
export declare const SHIMMER_PRESETS: Record<GradientPreset, ShimmerPreset>;
/**
 * Animation speed in milliseconds per frame
 */
export declare const ANIMATION_SPEEDS: Record<AnimationSpeed, number>;
/**
 * Default fallback colors when gradient is disabled (free tier)
 * Using vibrant colors that match the base colors of presets
 */
export declare const FALLBACK_COLORS: Record<GradientPreset, string>;
/**
 * Get shimmer preset
 */
export declare function getShimmerPreset(preset: GradientPreset): ShimmerPreset;
/**
 * Get animation speed in ms
 */
export declare function getAnimationSpeed(speed: AnimationSpeed): number;
/**
 * Get fallback color for a preset
 */
export declare function getFallbackColor(preset: GradientPreset): string;
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