/**
 * Theme Preset Grid — 6 curated preset cards.
 *
 * Modeled on Theme.jsx ThemePresetGrid (~L460-482). Each card shows a small
 * art preview (header bar + accent dot + content card with bars) and the
 * preset's label + description. Clicking applies the preset to the engine.
 */
export declare class ThemePresetGrid {
    readonly el: HTMLElement;
    constructor();
    private render;
    private updateActive;
}
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