Sparkline graphs illustrate workload performance metrics.
Solid lines represent the current data for their respective metric.
On a single-sparkline graph (for example, the Max Response metric), the solid line represents current data for the metric, and the grayed skyline represents the past averages for that same metric.
On a multi-sparkline graph, a metric can be expressed in more than one value. When you hover over the sparkline, the color of the metric name, end data points, and information balloons match.