On the final page of the Add Counter wizard, you can specify how the selected counter series will be displayed on the Performance Counters page.
The Display name box denotes the name that will be used to identify the counter series in the series list and label the related axis on a graph. The Color box defines the color the counter series will be drawn in. To choose a color with the standard Select Color dialog, click the ellipses button.
You can view and change the counter parameters by clicking Back. To add the counter to the graph, click Finish.
See Also
Add Counter Wizard
Generic Test Log - Performance Counters Panel