import type { Component } from "../../runtime/component.ts";
import { type BorderStyle } from "../../theme/spacing.ts";
export interface PanelOptions {
    readonly title?: string;
    readonly borderStyle?: BorderStyle;
    readonly paddingX?: number;
    readonly paddingY?: number;
    readonly borderColor?: (text: string) => string;
    readonly background?: (text: string) => string;
    readonly child?: Component;
    readonly lines?: readonly string[];
}
/**
 * A bordered panel with optional title, padding, and background color.
 *
 * Renders a rectangular frame with configurable border style (round,
 * single, double, thick), title bar, interior padding, and background
 * coloring for the content area.
 */
export declare class Panel implements Component {
    private readonly options;
    constructor(options?: PanelOptions);
    render(width: number, height?: number): string[];
    private buildTopBorder;
}
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