A set of properties of ParaStyle defined in this style template.
property ValidParaProperties: TRVParaInfoProperties;
Only properties included in this set are used. Values of other ParaStyle's properties are ignored.
This property is used only if Kind<>rvstkText (otherwise, none of paragraph properties are used).
Although this property is public, not published, it may be defined at design-time in the Object Inspector (where it is displayed as ValidParaPropertiesEditor). It was made because of a Delphi limitation on the count of values in published set properties.