public static Format fromStringOrNull( String value ) {
            return Arrays.stream(Format.values())
                    .filter(format -> format.formatName.equalsIgnoreCase((value)))
                    .findFirst()
                    .orElse(null);
        }
to create a custom report, extend this enum with the name of your choice
jgiven-core/src/main/java/com/tngtech/jgiven/report/ReportGenerator.java