/**
 * Self-contained Vite error overlay for Gracile.
 *
 * Ported from Astro's error overlay (MIT License, Astro contributors).
 * @see https://github.com/withastro/astro/blob/main/packages/astro/src/core/errors/overlay.ts
 *
 * Customized with Gracile branding (logo, accent colors, localStorage keys).
 * The overlay is designed to be fully inlined into Vite's client bundle
 * with no external runtime dependencies (no Lit, no framework imports).
 */
export declare function patchOverlay(code: string): string;
//# sourceMappingURL=overlay.d.ts.map