APM allows you to define multiple data appearances controlled by whether you have selected to support variable graph appearances. For example, you can define different versions of charts for each asset health calculation on an asset health report.
If support for variable chart appearances is selected, APM examines in sequential order, each of the graph properties appearances that you have defined in order to determine which appearance will be used, based on whether the controlling attribute is true. If a controlling attribute is true, its custom appearance is used, otherwise the default graph properties are used.