Area Chart is useful to compare across categories and visualize the gaps between the scores. They represent each data point as shaded areas on a graph. First, you need to generate a Table Chart then modify the chart to create an Area chart.

For example, QA Manager wants to view Count Of Issues By their Created Date.

The fields required in the report are: Issue Created Date, Issue Entity Key

Once you save the gadget, it will be available in QMetry Custom Gadget > My Gadget tab.