JAL-3416 remove a missed panel titlebar icon in TreePanel

diff --git a/src/jalview/gui/TreePanel.java b/src/jalview/gui/TreePanel.java
index fd85779..76e1884 100755 (executable)
--- a/src/jalview/gui/TreePanel.java
+++ b/src/jalview/gui/TreePanel.java
@@ -118,6 +118,7 @@ public class TreePanel extends GTreePanel
           String theTitle, AlignmentView inputData)
   {
     super();
+    this.setFrameIcon(null);
     this.treeTitle = theTitle;
     initTreePanel(alignPanel, null, null, newtree, inputData);
   }