This stacked column chart from ECharts compares weekly traffic sources, with categories for Direct, Email, and Ad groups stacked, while Search Engine data appears separately with its own stacked sub-sources. The chart uses a category x-axis for days and a value y-axis, with emphasis focus on series selection and a dashed markLine connecting minimum and maximum values. It is built with Apache ECharts 5, initialized on a canvas renderer, and responds to window resize events.