MQL5 ReferenceStandard LibraryCustom GraphicsCHistogramChartGradient GradientBarGapBarMinSizeBarBorderCreateSeriesAddSeriesInsertSeriesUpdateSeriesDeleteValueUpdateDrawDataDrawBarGradientBrush Gradient Sets the flag indicating whether the gradient fill of the histogram columns will be applied. void Gradient( const bool flag=true, // flag value ) Parameters flag=true Flag value: true if the gradient fill is enabled, otherwise — false. CHistogramChart BarGap