/**
 * Theme Registry
 *
 * Central registry for all available themes. Provides utilities for
 * theme lookup, validation, and management.
 */
import type { Theme, ThemePreset } from './types.js';
/**
 * Map of all built-in themes
 */
export declare const themes: Record<ThemePreset, Theme>;
/**
 * List of available theme presets (built-in only)
 */
export declare const availablePresets: ThemePreset[];
/**
 * Get a theme by preset name
 * Checks built-in themes first, then custom registered themes
 * @param preset - Theme preset identifier
 * @returns The theme definition
 * @throws Error if preset is invalid
 */
export declare function getTheme(preset: ThemePreset): Theme;
/**
 * Check if a preset is valid (built-in or custom)
 * @param preset - Value to check
 * @returns True if valid theme preset
 */
export declare function isValidPreset(preset: string): preset is ThemePreset;
/**
 * Get theme display name
 * @param preset - Theme preset
 * @returns Human-readable theme name
 */
export declare function getThemeName(preset: ThemePreset): string;
/**
 * Get all themes as array (built-in only)
 * @returns Array of theme definitions
 */
export declare function getAllThemes(): Theme[];
/**
 * Get theme options for UI selection
 * @returns Array of {value, label} objects
 */
export declare function getThemeOptions(): {
    value: ThemePreset;
    label: string;
}[];
/**
 * Register a custom theme in the registry
 * @internal Use registerTheme from create-theme.ts instead
 */
export declare function registerCustomTheme(theme: Theme): void;
/**
 * Get a custom theme by id
 * @internal
 */
export declare function getCustomTheme(id: string): Theme | undefined;
/**
 * Check if a custom theme is registered
 * @internal
 */
export declare function hasCustomTheme(id: string): boolean;
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