/**
 * @license
 * Copyright 2025 Google LLC
 * SPDX-License-Identifier: Apache-2.0
 */
import { Theme, ThemeType, CustomTheme } from './theme.js';
export interface ThemeDisplay {
    name: string;
    type: ThemeType;
    isCustom?: boolean;
}
export declare const DEFAULT_THEME: Theme;
declare class ThemeManager {
    private readonly availableThemes;
    private activeTheme;
    private customThemes;
    constructor();
    /**
     * Loads custom themes from settings.
     * @param customThemesSettings Custom themes from settings.
     */
    loadCustomThemes(customThemesSettings?: Record<string, CustomTheme>): void;
    /**
     * Sets the active theme.
     * @param themeName The name of the theme to set as active.
     * @returns True if the theme was successfully set, false otherwise.
     */
    setActiveTheme(themeName: string | undefined): boolean;
    /**
     * Gets the currently active theme.
     * @returns The active theme.
     */
    getActiveTheme(): Theme;
    /**
     * Gets a list of custom theme names.
     * @returns Array of custom theme names.
     */
    getCustomThemeNames(): string[];
    /**
     * Checks if a theme name is a custom theme.
     * @param themeName The theme name to check.
     * @returns True if the theme is custom.
     */
    isCustomTheme(themeName: string): boolean;
    /**
     * Returns a list of available theme names.
     */
    getAvailableThemes(): ThemeDisplay[];
    /**
     * Gets a theme by name.
     * @param themeName The name of the theme to get.
     * @returns The theme if found, undefined otherwise.
     */
    getTheme(themeName: string): Theme | undefined;
    findThemeByName(themeName: string | undefined): Theme | undefined;
}
export declare const themeManager: ThemeManager;
export {};