This service stores the chart types that are available when creating a Chart View. Chart View Types Form 
Attachments Tab
The Attachments tab lists any files relevant to the Chart View Types record.
General Tab
Name (
...
Required)
The name of the chart type.
Description
A description of the chart type. This description appears in the View dialog.
Icon
The specified icon appears to the left of the chart type in the View dialog's Chart Types tab. Note that if both an Icon and Small Icon are specified, the Chart Type uses the Small Icon.
Small Icon
The specified icon appears to the left of the chart type in the View dialog's Chart Types tab.
Sample Image
This field is not implemented for this release of Aptify.
Max # Groups (
...
Required)
Specifies the maximum number of groupings that a chart of this type can support. When set to 1, only a Primary Grouping sub-tab appears under the View dialog's Grouping tab. When set to 2, a Primary Grouping Primary Grouping and a Secondary Grouping sub-tab appears under the View dialog's Grouping tab.