Index: trunk/src/org/openstreetmap/josm/gui/dialogs/MapPaintDialog.java
===================================================================
--- trunk/src/org/openstreetmap/josm/gui/dialogs/MapPaintDialog.java	(revision 9759)
+++ trunk/src/org/openstreetmap/josm/gui/dialogs/MapPaintDialog.java	(revision 9760)
@@ -175,5 +175,9 @@
         InputMapUtils.addSpacebarAction(tblStyles, onoffAction);
 
-        createLayout(p, true, Arrays.asList(
+        JScrollPane sp = new JScrollPane(p);
+        // putting JTable directly in a JScrollPane works nicely, but with
+        // JPanel wrapper, the default scroll increment is too small
+        sp.getVerticalScrollBar().setUnitIncrement(16);
+        createLayout(sp, false, Arrays.asList(
                 new SideButton(onoffAction, false),
                 new SideButton(upAction, false),