* @return
*/
void setAttributeName(String... name);
+
+ /**
+ * Answers true if colour has a threshold set, and the feature score (or other
+ * attribute selected for colouring) is outwith the threshold.
+ * <p>
+ * Answers false if not a graduated colour, or no threshold is set, or value
+ * is not outwith the threshold, or value is null or non-numeric.
+ *
+ * @param sf
+ * @return
+ */
+ boolean isOutwithThreshold(SequenceFeature sf);
}