PhpOffice\PhpPresentation\Writer\ODPresentation\ObjectsChart::writeWallStyle PHP Method

    private function writeWallStyle(Chart $chart)
    {
        $chartType = $chart->getPlotArea()->getType();
        // style:style
        $this->xmlContent->startElement('style:style');
        $this->xmlContent->writeAttribute('style:name', 'styleWall');
        $this->xmlContent->writeAttribute('style:family', 'chart');
        // style:chart-properties
        $this->xmlContent->startElement('style:graphic-properties');
        //@todo : Permit edit color and size border of wall
        if ($chartType instanceof Line || $chartType instanceof Scatter) {
            $this->xmlContent->writeAttribute('draw:fill', 'solid');
            $this->xmlContent->writeAttribute('draw:fill-color', '#FFFFFF');
        } else {
            $this->xmlContent->writeAttribute('draw:fill', 'none');
            $this->xmlContent->writeAttribute('draw:stroke', 'solid');
            $this->xmlContent->writeAttribute('svg:stroke-width', '0.026cm');
            $this->xmlContent->writeAttribute('svg:stroke-color', '#878787');
        }
        // > style:chart-properties
        $this->xmlContent->endElement();
        // > style:style
        $this->xmlContent->endElement();
    }