+import java.awt.FlowLayout;
+import java.awt.event.ActionEvent;
+import java.awt.event.ActionListener;
+import java.awt.event.MouseAdapter;
+import java.awt.event.MouseEvent;
+import java.util.Hashtable;
+import java.util.Vector;
+
+import javax.swing.BorderFactory;
+import javax.swing.JButton;
+import javax.swing.JCheckBox;
+import javax.swing.JComboBox;
+import javax.swing.JInternalFrame;
+import javax.swing.JLayeredPane;
+import javax.swing.JPanel;
+
+import net.miginfocom.swing.MigLayout;
+
+@SuppressWarnings("serial")
+public class AnnotationColourChooser extends AnnotationRowFilter