How to Change PIA Look in PTools 8.50/8.51

I have come across a client whose PeopleSoft application (PeopleSoft menu and User Interface) still looking as earlier versions even after upgrading to PeopleTools 8.51 (HCM 9.1 Application). Why should we have the old look and feel of PIA when we have some new features in PeopleTools 8.50/8.51 which gives a new look? When you have PeopleTools 8.50 or 8.51 with application release 9.1, get a new look by change some default settings listed below.

Navigation: PeopleTools ---> Utilities ---> Administration ---> PeopleTools Options

The Style Sheet Name should be set to PSSTYLEDEF_SWAN

Navigation: PeopleTools ---> Portal ---> General Settings

Make sure the Navigation Type is set to 'Drop-Down' instead of 'Left'

Navigation: PeopleTools ---> Portal ---> Portal Utilities ---> System Options

The Style Sheet Name should be set to PSSTYLEDEF_SWAN

The changes should be reflected immediately and if not, then login again after clearing the browser cache. In case of Tools 8.5x installation from scratch, the Drop Down navigation comes by default. If it is upgraded from older tools release, the navigation type will be 'Left' by default.