Styling Qt charts

As good as Qt charts look by default, let's face it—nobody wants to be stuck with defaults when it comes to style. Fortunately, QtCharts offers a wide variety of options for styling the different components of our visualizations.

To explore these options, we're going to build a third chart to show physical and swap memory usage, and then style it to our own preferences.

Building the memory chart

We'll start this chart view object just like we started the others in the previous sections:

class MemoryChartView(qtch.QChartView):

    chart_title = "Memory Usage"
    num_data_points = 50

    def __init__(self):
        super().__init__()
        chart = qtch.QChart(title=self.chart_title...