/**
 * Convert color fallback chain to RGB fallback chain.
 * Example: var(--primary-color, var(--secondary-color)) → var(--primary-color-rgb, var(--secondary-color-rgb))
 */
export declare function convertColorChainToRgbChain(colorValue: string): string;
export declare function createStyle(styleName: string, cssStyle?: string, converter?: (styleValue: string | number | true) => string | undefined): any;
