import { FillStyle } from './FillStyle.js';
import { Theme } from './Theme.js';
/**
 * A theme which always gives out a random canvas fill colour. Used for
 * debugging when painting occurs. Has no properties but always has a fallback
 * theme.
 *
 * @category Theme
 */
export declare class DebugTheme extends Theme {
    /**
     * @param fallback - The actual theme to use. Canvas fill color will be ignored as it is randomly generated. If none supplied, then the default theme found in {@link Theme."constructor"} is used
     */
    constructor(fallback?: Theme);
    get canvasFill(): FillStyle;
    set canvasFill(value: FillStyle | undefined);
}