import { PdfDict } from '../pdf/objects.js';
import { PdfFile } from './document.js';
/** A tiling pattern read as a tint: the colour it paints, and how much of the cell. */
export interface PatternTint {
    readonly colorHex: string;
    /** 0–1 — the share of the cell the pattern's marks cover. */
    readonly coverage: number;
}
/**
 * Read a named tiling pattern as a tint.
 *
 * @param file      The owning file.
 * @param resources The resources the pattern is named in.
 * @param name      The pattern's resource name.
 * @returns Its colour and coverage, or `undefined` when neither can be told.
 */
export declare function patternTint(file: PdfFile, resources: PdfDict | undefined, name: string): PatternTint | undefined;