+import jalview.api.structures.JalviewStructureDisplayI;
+import jalview.bin.Cache;
+import jalview.datamodel.SequenceGroup;
+import jalview.io.JalviewFileChooser;
+import jalview.io.JalviewFileView;
+import jalview.jbgui.GUserDefinedColours;
+import jalview.schemes.ColourSchemeI;
+import jalview.schemes.ResidueProperties;
+import jalview.schemes.UserColourScheme;
+import jalview.util.ColorUtils;
+import jalview.util.Format;
+import jalview.util.MessageManager;
+