#!/usr/bin/perl -w
use strict;
use Chart::Gnuplot;
# Create the chart object
my $chart = Chart::Gnuplot->new(
    output => "circle_4.png",
    title  => "Border color of the circle",
);
# Draw a circle
$chart->circle(
    at     => "-4, -0.2",
    size   => 3,
    border => {color => "#5050FF"},
);
# Data set object
my $dataSet = Chart::Gnuplot::DataSet->new(
    func => "sin(x)",
);
# Plot the graph
$chart->plot2d($dataSet);