/**
 * TreeSilhouetteSystem
 *
 * Renders stylized cherry tree silhouettes along edges.
 * Uses cached OffscreenCanvas for performance.
 */
import type { Dimensions } from "../../../../core/domain/types.js";
export declare class TreeSilhouetteSystem {
    private cachedCanvas;
    private lastDimensions;
    private silhouetteColor;
    private isInitialized;
    constructor();
    initialize(dimensions: Dimensions): void;
    private renderToCache;
    private drawTree;
    update(_dimensions: Dimensions, _frameMultiplier?: number): void;
    draw(ctx: CanvasRenderingContext2D, dimensions: Dimensions): void;
    handleResize(newDimensions: Dimensions): void;
    /**
     * Set silhouette color (for different time-of-day modes)
     */
    setSilhouetteColor(color: string): void;
    cleanup(): void;
}
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