Bug 15604 Promote Fill arguments on method completion to a real preference
It is still in work in progress but it has become an established feature by now. Promote the preference to the code assist preference page.
org.eclipse.jdt.ui/ui/org/eclipse/jdt/internal/ui/preferences/JavaEditorPreferencePage.java
final RGB[] rgbs= new RGB[3];
		final Display display= Display.getDefault();
		display.syncExec(new Runnable() {
			public void run() {
				Color c= display.getSystemColor(SWT.COLOR_GRAY);
				rgbs[0]= c.getRGB();
				c= display.getSystemColor(SWT.COLOR_LIST_FOREGROUND);
				rgbs[1]= c.getRGB();
				c= display.getSystemColor(SWT.COLOR_LIST_BACKGROUND);
				rgbs[2]= c.getRGB();
			}
		});
		
		
		/* 
		 * Go on in whatever thread this is. 
		 */
		store.setDefault(CompilationUnitEditor.MATCHING_BRACKETS, true);
		PreferenceConverter.setDefault(store, CompilationUnitEditor.MATCHING_BRACKETS_COLOR,  rgbs[0]);
		
		store.setDefault(CompilationUnitEditor.CURRENT_LINE, true);
		PreferenceConverter.setDefault(store, CompilationUnitEditor.CURRENT_LINE_COLOR, new RGB(225, 235, 224));
		
		store.setDefault(CompilationUnitEditor.PRINT_MARGIN, false);
		store.setDefault(CompilationUnitEditor.PRINT_MARGIN_COLUMN, 80);
		PreferenceConverter.setDefault(store, CompilationUnitEditor.PRINT_MARGIN_COLOR, new RGB(176, 180 , 185));
		PreferenceConverter.setDefault(store, AbstractTextEditor.PREFERENCE_COLOR_FIND_SCOPE, new RGB(185, 176 , 180));
		
		store.setDefault(CompilationUnitEditor.PROBLEM_INDICATION, true);
		store.setDefault(WorkInProgressPreferencePage.PREF_SHOW_TEMP_PROBLEMS, false);