Color getNoColour();
/**
- * Answers true if the feature has a single colour
+ * Answers true if the feature has a single colour, i.e. if isColourByLabel()
+ * and isGraduatedColour() both answer false
*
- * @return true iff not (isColourByLabel() || isGraduatedColour())
+ * @return
*/
boolean isSimpleColour();