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
addCheckBox(behaviorComposite, label, CompilationUnitEditor.MATCHING_BRACKETS, 0);
		
		label= JavaUIMessages.getString("JavaEditorPreferencePage.highlightCurrentLine"); 
		addCheckBox(behaviorComposite, label, CompilationUnitEditor.CURRENT_LINE, 0);
				
		label= JavaUIMessages.getString("JavaEditorPreferencePage.showPrintMargin"); 
		addCheckBox(behaviorComposite, label, CompilationUnitEditor.PRINT_MARGIN, 0);
		Label l= new Label(behaviorComposite, SWT.LEFT);
		GridData gd= new GridData(GridData.HORIZONTAL_ALIGN_FILL);
		gd.horizontalSpan= 2;
		l.setLayoutData(gd);
		
		l= new Label(behaviorComposite, SWT.LEFT);
		l.setText("Appearance color options:");
		gd= new GridData(GridData.HORIZONTAL_ALIGN_FILL);
		gd.horizontalSpan= 2;
		l.setLayoutData(gd);
		Composite editorComposite= new Composite(behaviorComposite, SWT.NONE);
		layout= new GridLayout();
		layout.numColumns= 2;
		layout.marginHeight= 0;
		layout.marginWidth= 0;
		editorComposite.setLayout(layout);
		gd= new GridData(GridData.HORIZONTAL_ALIGN_FILL | GridData.FILL_VERTICAL);
		gd.horizontalSpan= 2;
		editorComposite.setLayoutData(gd);		
		fAppearanceColorList= new List(editorComposite, SWT.SINGLE | SWT.V_SCROLL | SWT.BORDER);
		gd= new GridData(GridData.FILL_BOTH);
		gd.heightHint= convertHeightInCharsToPixels(5);
		fAppearanceColorList.setLayoutData(gd);