import { VChartSemiThemeHelper } from '@visactor/vchart-semi-theme';
export declare class VChartTTPlatformThemeHelper extends VChartSemiThemeHelper {
    static themeNamePrefix: string;
    themeNamePrefix: string;
    baseTheme: {
        light: import("@visactor/vchart").ITheme;
        dark: import("@visactor/vchart").ITheme;
    };
}