-import java.util.*;
-
-import java.awt.*;
-import java.awt.event.*;
-
-import jalview.analysis.AlignmentSorter;
-import jalview.commands.OrderCommand;
-import jalview.datamodel.*;
-import jalview.schemes.AnnotationColourGradient;
-import jalview.schemes.GraduatedColor;
+import jalview.api.FeatureColourI;
+import jalview.api.FeatureSettingsControllerI;
+import jalview.datamodel.AlignmentI;
+import jalview.datamodel.SequenceI;
+import jalview.util.MessageManager;
+
+import java.awt.BorderLayout;
+import java.awt.Button;
+import java.awt.Checkbox;
+import java.awt.Color;
+import java.awt.Component;
+import java.awt.Dimension;
+import java.awt.Font;
+import java.awt.FontMetrics;
+import java.awt.Frame;
+import java.awt.Graphics;
+import java.awt.GridLayout;
+import java.awt.Image;
+import java.awt.Label;
+import java.awt.MenuItem;
+import java.awt.Panel;
+import java.awt.PopupMenu;
+import java.awt.ScrollPane;
+import java.awt.Scrollbar;
+import java.awt.event.ActionEvent;
+import java.awt.event.ActionListener;
+import java.awt.event.AdjustmentEvent;
+import java.awt.event.AdjustmentListener;
+import java.awt.event.InputEvent;
+import java.awt.event.ItemEvent;
+import java.awt.event.ItemListener;
+import java.awt.event.MouseEvent;
+import java.awt.event.MouseListener;
+import java.awt.event.MouseMotionListener;
+import java.awt.event.WindowAdapter;
+import java.awt.event.WindowEvent;
+import java.util.ArrayList;
+import java.util.Arrays;
+import java.util.HashSet;
+import java.util.List;
+import java.util.Map;
+import java.util.Set;