export declare function parseColor(color: string): [number, number, number, number];
export declare function brightenColor(color: string, isDarkTheme?: boolean): string;
export declare function interleaveData(x: Float32Array | Float64Array | number[], y: Float32Array | Float64Array | number[]): Float32Array;
export declare function interleaveStepData(x: Float32Array | Float64Array | number[], y: Float32Array | Float64Array | number[], mode?: "before" | "after" | "center"): Float32Array;
export declare function interleaveBandData(x: Float32Array | Float64Array | number[], y1: Float32Array | Float64Array | number[], y2: Float32Array | Float64Array | number[]): Float32Array;
export declare function interleaveErrorData(x: Float32Array | Float64Array | number[], y: Float32Array | Float64Array | number[], yErr?: {
    yError?: Float32Array | Float64Array;
    yErrorMinus?: Float32Array | Float64Array;
    yErrorPlus?: Float32Array | Float64Array;
}, xErr?: {
    xError?: Float32Array | Float64Array;
    xErrorMinus?: Float32Array | Float64Array;
    xErrorPlus?: Float32Array | Float64Array;
}): Float32Array;