Pop\Pdf\Pdf::setStrokeColor PHP Method

    public function setStrokeColor(ColorInterface $color)
    {
        $this->strokeColor = $color;
        $co_index = $this->getContentObject();
        $this->objects[$co_index]->setStream("\n" . $this->convertColor($color->getRed()) . " " . $this->convertColor($color->getGreen()) . " " . $this->convertColor($color->getBlue()) . " RG\n");
        return $this;
    }

<?php

require_once '../../bootstrap.php';
use Pop\Color\Space\Rgb;
use Pop\Pdf\Pdf;
try {
    $pdf = new Pdf('new_test.pdf');
    $pdf->import('../assets/pdfs/hospital.pdf');
    $pdf->setFillColor(new Rgb(128, 200, 50));
    $pdf->setStrokeColor(new Rgb(0, 255, 0));
    $pdf->setStrokeWidth(8);
    $pdf->drawCircle(500, 500, 100);
    $pdf->setFillColor(new Rgb(215, 101, 12));
    $pdf->setStrokeColor(new Rgb(0, 0, 0));
    $pdf->setStrokeWidth(2, 5, 5);
    $pdf->drawRectangle(50, 150, 175, 50);
    $pdf->setPage(2);
    $pdf->setFillColor(new Rgb(12, 101, 215));
    $pdf->setStrokeColor(new Rgb(0, 0, 128));
    $pdf->setStrokeWidth(5);
    $pdf->drawRectangle(150, 650, 400, 100);
    $pdf->addFont('Courier');
    $pdf->setFillColor(new Rgb(12, 255, 12));
    $pdf->addText(10, 300, 18, 'Hello World Again!!!', 'Courier');
    $pdf->addUrl(10, 300, 380, 18, 'http://www.popphp.org/');
    $pdf->setFillColor(new Rgb(128, 200, 50));
    $pdf->setStrokeColor(new Rgb(0, 255, 0));
    $pdf->setStrokeWidth(8);
    $pdf->drawCircle(500, 500, 100);
    $pdf->addPage('Legal');
    $pdf->setFillColor(new Rgb(128, 200, 50));