java.lang.NullPointerException
   at org.netbeans.modules.editor.fold.ui.FoldViewFactory.refreshColors(FoldViewFactory.java:196)
   at org.netbeans.modules.editor.fold.ui.FoldViewFactory.resultChanged(FoldViewFactory.java:175)
   at sun.reflect.GeneratedMethodAccessor35.invoke(GeneratedMethodAccessor35.java:0)
   at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
   at java.lang.reflect.Method.invoke(Method.java:497)
   at org.openide.util.WeakListenerImpl$ProxyListener.invoke(WeakListenerImpl.java:487)
   at com.sun.proxy.$Proxy4.resultChanged(.java:0)
   at org.openide.util.lookup.AbstractLookup$NotifyListeners.run(AbstractLookup.java:542)
   at org.openide.util.lookup.AbstractLookup.notifyIn(AbstractLookup.java:314)
   at org.openide.util.lookup.AbstractLookup.setPairs(AbstractLookup.java:307)
   at org.openide.util.lookup.AbstractLookup$Content.setPairs(AbstractLookup.java:1312)
   at org.openide.util.lookup.InstanceContent.set(InstanceContent.java:153)
   at org.netbeans.modules.editor.settings.storage.SettingsProvider$MyLookup.updateContents(SettingsProvider.java:300)
   at org.netbeans.modules.editor.settings.storage.SettingsProvider$MyLookup.preferenceChange(SettingsProvider.java:225)
   at sun.reflect.GeneratedMethodAccessor36.invoke(GeneratedMethodAccessor36.java:0)
   at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
   at java.lang.reflect.Method.invoke(Method.java:497)
   at org.openide.util.WeakListenerImpl$ProxyListener.invoke(WeakListenerImpl.java:487)
   at com.sun.proxy.$Proxy12.preferenceChange(.java:0)
   at java.util.prefs.AbstractPreferences$EventDispatchThread.run(AbstractPreferences.java:1496)