import { CSSProperties } from 'react';
import { Theme } from '../models/Theme';
/**
 * Checks if a custom theme object has any user-defined properties
 */
export declare function hasCustomTheme(theme?: Theme): boolean;
/**
 * Computes CSS variables from a theme object.
 * Returns empty object for default themes to avoid CSS var duplication.
 * Only returns vars when custom theme properties are provided.
 */
export declare function computeCssVarsFromTheme(theme: Theme | undefined, isDarkMode?: boolean): CSSProperties;
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