java.lang.NullPointerException
	at org.netbeans.modules.diff.options.DiffColorsPanel.applyChanges(DiffColorsPanel.java:118)
	at org.netbeans.modules.options.colors.FontAndColorsPanel.applyChanges(FontAndColorsPanel.java:209)
	at org.netbeans.modules.options.colors.FontAndColorsPanelController.applyChanges(FontAndColorsPanelController.java:68)
	at org.netbeans.modules.options.CategoryModel$Category.applyChanges(CategoryModel.java:342)
	at org.netbeans.modules.options.CategoryModel$Category.access$1000(CategoryModel.java:274)
	at org.netbeans.modules.options.CategoryModel.save(CategoryModel.java:185)
	at org.netbeans.modules.options.OptionsPanel.save(OptionsPanel.java:186)
	at org.netbeans.modules.options.OptionsDisplayerImpl$OptionsPanelListener$1.run(OptionsDisplayerImpl.java:171)
	at org.openide.util.RequestProcessor$Task.run(RequestProcessor.java:539)
[catch] at org.openide.util.RequestProcessor$Processor.run(RequestProcessor.java:964)