This property page is part of the dialog for editing the graph style of the equipment occupancy data chart.
There are five such tabs: one for each of the occupancy measures that can be shown on the chart.
The ‘Outline’ group of controls defines the characteristics of the line around each box. The ‘Interior’ set of controls affects the interior features of the bar. Finally, the ‘Width/Thickness’ value determines how wide the bar appears on the chart.