Formatting a series
In addition to modifying the chart area element attributes, you can also format the chart series. Generally, the type of series determines the formatting options you can apply for that series. The following options are available:

Formatting the color of value or category series elements

Adding a trendline to value series of many chart types

Adding a trendline to the category series in a scatter chart, because a scatter chart category series displays values.
Figure 17‑97 Setting the minor grid count