/**
 * [WHO]: ThemeContract, getAvailableThemes, ThemeInfo, getAvailableThemesWithPaths, loadThemeFromPath
 * [FROM]: Depends on node:fs, node:path, @sinclair/typebox, @sinclair/typebox/compiler, chalk
 * [TO]: Consumed by main.ts, core/extensions-host/runner.ts, core/extensions-host/types.ts, core/runtime/agent-session.ts, core/export-html/index.ts, core/export-html/tool-renderer.ts, modes/interactive/components/*, extensions/optional/export-html/index.ts, extensions/optional/simplify/index.ts
 * [HERE]: modes/interactive/theme/theme.ts - theme loader and definitions
 */
import type { EditorTheme, MarkdownTheme, SelectListTheme } from "@catui/tui";
import type { ColorMode, Theme as ThemeContract, ThemeBg, ThemeColor } from "../../../core/theme-contract.js";
export type { ThemeColor, ThemeBg, ColorMode, Theme } from "../../../core/theme-contract.js";
export declare class ThemeImpl implements ThemeContract {
    readonly name?: string;
    readonly sourcePath?: string;
    private fgColors;
    private bgColors;
    private mode;
    constructor(fgColors: Record<ThemeColor, string | number>, bgColors: Record<ThemeBg, string | number>, mode: ColorMode, options?: {
        name?: string;
        sourcePath?: string;
    });
    fg(color: ThemeColor, text: string): string;
    bg(color: ThemeBg, text: string): string;
    bold(text: string): string;
    italic(text: string): string;
    underline(text: string): string;
    inverse(text: string): string;
    strikethrough(text: string): string;
    getFgAnsi(color: ThemeColor): string;
    getBgAnsi(color: ThemeBg): string;
    getColorMode(): ColorMode;
    getThinkingBorderColor(level: "off" | "minimal" | "low" | "medium" | "high" | "xhigh"): (str: string) => string;
    getBashModeBorderColor(): (str: string) => string;
}
export declare function getAvailableThemes(): string[];
export interface ThemeInfo {
    name: string;
    path: string | undefined;
}
export declare function getAvailableThemesWithPaths(): ThemeInfo[];
export declare function loadThemeFromPath(themePath: string, mode?: ColorMode): ThemeContract;
export declare function getThemeByName(name: string): ThemeContract | undefined;
export declare const theme: ThemeContract;
export declare function setRegisteredThemes(themes: ThemeContract[]): void;
export declare function initTheme(themeName?: string, enableWatcher?: boolean): void;
export declare function setTheme(name: string, enableWatcher?: boolean): {
    success: boolean;
    error?: string;
};
export declare function setThemeInstance(themeInstance: ThemeContract): void;
export declare function onThemeChange(callback: () => void): void;
export declare function stopThemeWatcher(): void;
/**
 * Get resolved theme colors as CSS-compatible hex strings.
 * Used by HTML export to generate CSS custom properties.
 */
export declare function getResolvedThemeColors(themeName?: string): Record<string, string>;
/**
 * Check if a theme is a "light" theme (for CSS that needs light/dark variants).
 */
export declare function isLightTheme(themeName?: string): boolean;
/**
 * Get explicit export colors from theme JSON, if specified.
 * Returns undefined for each color that isn't explicitly set.
 */
export declare function getThemeExportColors(themeName?: string): {
    pageBg?: string;
    cardBg?: string;
    infoBg?: string;
};
/**
 * Highlight code with syntax coloring based on file extension or language.
 * Returns array of highlighted lines.
 */
export declare function highlightCode(code: string, lang?: string): string[];
/**
 * Get language identifier from file path extension.
 */
export declare function getLanguageFromPath(filePath: string): string | undefined;
export declare function getMarkdownTheme(): MarkdownTheme;
export declare function getSelectListTheme(): SelectListTheme;
export declare function getEditorTheme(): EditorTheme;
export declare function getSettingsListTheme(): import("@catui/tui").SettingsListTheme;