title: How to create desktop application using fully customized UI?
body: <p>Have a look at this figure below, which is a Quick Book Enterprise Solution 2014</p>
  
  <p><img src="https://i.stack.imgur.com/xEMqc.png" alt="QuickBook Enterprise Edition 2014"></p>
  
  <p>Judging by its interface (not its DLL), I don't think you can easily guess with what platform/language does the above application was created. Qt? .NET? Java? It has its own border, custom menu, ... etc. In a simple wording, "it has totally customized UI that make it stand from the rest".</p>
  
  <p>What do we need to be able to create this kind of application with fully customized UI? And what if I add cross platform aspect in this application? Different customized widgets in different OSes... but maintaining the same level of UI appearance...</p>
  
  <p>I have previous experience with Qt, .. but I am not sure Qt can do this.. or is it?</p>