Bug 178297 [Dialogs] - remove required field color
There are still some dialogs using the (now deprecated) class FieldAssistColors. We shouldn't color the required fields anymore in these dialogs: NewFolderDialog CreateLinkedResourceGroup ResourceWorkingSetPage ContainerSelectionGroup ResourceAndContainerGroup
bundles/org.eclipse.ui.ide/src/org/eclipse/ui/internal/ide/dialogs/ResourceWorkingSetPage.java
IWorkbenchPage page = IDEWorkbenchPlugin.getDefault().getWorkbench().getActiveWorkbenchWindow().getActivePage();
            		if(page == null) {
            			return;
            		}
            		IWorkbenchPart part = page.getActivePart();
            		if(part == null) {
            			return;
            		}
            		ISelection selection = page.getSelection();
            		if(selection instanceof IStructuredSelection) {
            			items = ((IStructuredSelection)selection).toArray();
            		}
        		} else {
        			items = workingSet.getElements();
        		}
            	if(items == null) {
            		return;
            	}
                tree.setCheckedElements(items);
                for (int i = 0; i < items.length; i++) {
                	IAdaptable item = null;
                	if(!(items[i] instanceof IAdaptable)) {
                		continue;
                	}
                	item = (IAdaptable)items[i];
                    IContainer container = null;
                    IResource resource = null;
                    if (item instanceof IContainer) {
                        container = (IContainer) item;
                    } else {