/**
 * Advanced terminal background detection using OSC escape sequences
 * This module provides various methods to detect terminal background color
 */
/**
 * Attempt to detect terminal background color using OSC 11 escape sequence
 * This is an async method that queries the terminal directly
 */
export declare function detectTerminalBackground(): Promise<"light" | "dark" | undefined>;
/**
 * Enhanced heuristic detection as fallback
 */
export declare function detectTerminalModeHeuristic(): "light" | "dark";
/**
 * Show current terminal environment for debugging
 */
export declare function debugTerminalEnvironment(): void;
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