I have no perfect answer to my question. The Islamic design principles do appear, within the context of my analysis, to have far reaching effects on all aspects of the design of Malaysian buildings. Even the most modern of buildings ,like the PJ trade center, still contain elements of pattern, lighting, etc that are similar to their implementation in traditional buildings such as Mosques (such as the Selimiye Mosque). However, given the modernisation and importation of western ideas this most likely might have come about from the older generations of architects and designers indirectly influencing their successors to copy some of the elements they used to create buildings. So the new generation maintained the aesthetics but without considering the meanings or principles behind them. This become especially apparent when the age of the Islamic design principles and the possibility of their principles carrying over as artists, designers and architects from other countries and traditions could have become influenced by Islamic architecture. So therefore, the real essence of Islamic architecture is likely to be extremely diluted and not a great consideration in todays contempoary designs.
This project did not turn out as expected and I often considered changing the original question. The website and its design became a very large part of the project and it refocused the project away from practical utilisation of the principles and more towards becoming a resource on the Internet to teach about Islamic architecture. Although I have no intention for this to be listed on any of the major search engines as even a fraction of the possible traffic will unfortunately overload the small server this website is hosted on.