Well, I don't think that Microsoft Office and Microsoft Visual Studio are that similar. Both of them are using style different than the system default. Throw ap

Well, I don't think that Microsoft Office and Microsoft Visual Studio are that similar. Both of them are using style different than the system default. Throw apps from other vendors into the mix, see Photoshop or Lightroom for example and it gets very difficult to argue, that the Windows desktop has unified style. Let's not go into the whole 'with WPF you can style your app any way you want' topic, because that's when the whole differentiation thing exploded. Not that OSX is any better - Apple's own Pro apps always had different look that the rest of the system. iTunes was always experimenting with looking odd. Also, third party apps look different - Office, Adobe apps, etc. So, it nothing wrong with Linux, all systems are like this.