Calculation field categories control visual formatting (color, font, etc.). Specifying a calculation field category here controls the default color/font of a calculation field.
Click Calculation Field Category List to open the Calculation Field Category List pop-up window.
Click + to add a record. Click Edit to edit a record.
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You can configure a name, description, and several formatting options. These calculation field categories will then be available to apply to specific calculation fields.
Beyond the default behavior, conditional formatting can be specified. Click Conditional Formats to open the Conditional Formats pop-up window displaying conditional formats for the current calculation field.
The Reference Calculation Field specifies which calculation field to look at for formatting decisions (the current field may be formatted based on the value of a different field).
If the value of the reference field is within the configured range, the specified calculation field category will be used for field formatting.