Report Designer Reference Reference information for Report Designer. Report Design Elements (The Toolbox)The Toolbox contains report elements that can be placed on a report design document.Report Element PropertiesEach element in a report has associated properties. Values for these properties may be literal, or they may be RTL expressions.Bar CodesThe report element container for a Bar Code is a Bar Code Box. This flow object draws bar codes. RTL Class ReferenceReference information for Report Template Language (RTL) classes.DimensionsThe dimensions for units that are used in reports.Report Writer preferencesSet default preferences for the Report Writer and Report Designer.Genero Report Designer file extensionsThis topic lists the file extensions relevant for the Genero Report Designer.