+/**\r
+ * generate a features file for seqs\r
+ * @param seqs source of sequence features\r
+ * @param visible hash of feature types and colours \r
+ * @return features file contents\r
+ */\r
+ public String printJalviewFormat(SequenceI[] seqs, Hashtable visible)\r
+ {\r
+ return printJalviewFormat(seqs, visible, true);\r
+ }\r
+\r