+import jalview.bin.Cache;
+import jalview.datamodel.AlignmentAnnotation;
+import jalview.datamodel.GraphLine;
+import jalview.datamodel.SequenceGroup;
+import jalview.gui.JalviewColourChooser.ColourChooserListener;
+import jalview.schemes.AnnotationColourGradient;
+import jalview.schemes.ColourSchemeI;
+import jalview.util.MessageManager;