-import jalview.api.AlignViewportI;
-import jalview.api.AlignmentViewPanel;
-import jalview.api.FeatureRenderer;
-import jalview.api.SequenceRenderer;
-import jalview.datamodel.AlignmentI;
-import jalview.datamodel.HiddenColumns;
-import jalview.datamodel.SequenceI;
-import jalview.renderer.seqfeatures.FeatureColourFinder;
-import jalview.util.Comparison;
-