import { Color } from '../types/modify-types';
import { ShapeBackgroundInfo, XmlElement } from '../types/xml-types';
export default class ModifyColorHelper {
    /**
     * Replaces or creates an <a:solidFill> Element.
     * The given elelement must be a <p:spPr> or <a:spPr>
     */
    static solidFill: (color: Color, index?: number | "last") => (element: XmlElement) => void;
    static removeNoFill: () => (element: XmlElement) => void;
    static normalizeColorObject: (color: Color) => Color;
    /**
     * Check if the given element has a background which is non-transparent
     * @param element The XML element to check
     * @returns ShapeBackgroundInfo
     */
    static elementHasBackground(element: XmlElement): ShapeBackgroundInfo;
    /**
     * Determines if a scheme color is typically dark and would require light text
     * @param schemeValue The scheme color value (e.g., 'dk1', 'lt1', 'accent1', etc.)
     * @returns true if the color is typically dark
     */
    private static isSchemeColorDark;
    /**
     * Determines if an RGB color is dark based on luminance
     * @param rgbValue The RGB hex value (e.g., '000000', 'FF0000')
     * @returns true if the color is dark
     */
    private static isRgbColorDark;
}