Bug 23459 add preference option to turn off variable guessing on method completion
request from Adam
org.eclipse.jdt.ui/ui/org/eclipse/jdt/internal/ui/preferences/JavaEditorPreferencePage.java
PreferenceConverter.setDefault(store,  AbstractTextEditor.PREFERENCE_COLOR_BACKGROUND, rgbs[2]);		
		store.setDefault(AbstractTextEditor.PREFERENCE_COLOR_BACKGROUND_SYSTEM_DEFAULT, true);
		
		store.setDefault(JavaSourceViewerConfiguration.PREFERENCE_TAB_WIDTH, 4);
		
		store.setDefault(CompilationUnitEditor.SPACES_FOR_TABS, false);
		
		PreferenceConverter.setDefault(store, IJavaColorConstants.JAVA_MULTI_LINE_COMMENT, new RGB(63, 127, 95));
		store.setDefault(IJavaColorConstants.JAVA_MULTI_LINE_COMMENT + "_bold", false); 
		
		PreferenceConverter.setDefault(store, IJavaColorConstants.JAVA_SINGLE_LINE_COMMENT, new RGB(63, 127, 95));
		store.setDefault(IJavaColorConstants.JAVA_SINGLE_LINE_COMMENT + "_bold", false); 
		
		PreferenceConverter.setDefault(store, IJavaColorConstants.JAVA_KEYWORD, new RGB(127, 0, 85));
		store.setDefault(IJavaColorConstants.JAVA_KEYWORD + "_bold", true); 
				
		PreferenceConverter.setDefault(store, IJavaColorConstants.JAVA_STRING, new RGB(42, 0, 255));
		store.setDefault(IJavaColorConstants.JAVA_STRING + "_bold", false); 
		
		PreferenceConverter.setDefault(store, IJavaColorConstants.JAVA_DEFAULT, new RGB(0, 0, 0));
		store.setDefault(IJavaColorConstants.JAVA_DEFAULT + "_bold", false); 
		PreferenceConverter.setDefault(store, IJavaColorConstants.JAVADOC_KEYWORD, new RGB(127, 159, 191));
		store.setDefault(IJavaColorConstants.JAVADOC_KEYWORD + "_bold", true); 
		
		PreferenceConverter.setDefault(store, IJavaColorConstants.JAVADOC_TAG, new RGB(127, 127, 159));
		store.setDefault(IJavaColorConstants.JAVADOC_TAG + "_bold", false); 
		
		PreferenceConverter.setDefault(store, IJavaColorConstants.JAVADOC_LINK, new RGB(63, 63, 191));
		store.setDefault(IJavaColorConstants.JAVADOC_LINK + "_bold", false);