/**
 * Radius Slider — 0..20px slider that drives `radius` on the theme engine.
 *
 * The engine then derives `--radius-sm` (0.5×), `--radius-md` (1×),
 * `--radius-lg` (1.5×), `--radius-xl` (2×).
 */
export declare class RadiusSlider {
    readonly el: HTMLElement;
    private readonly input;
    private readonly value;
    constructor();
    private applySliderFill;
}
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