You are correct. All buttons are placeholders for now, but they should definiteley have a better default style.
It would sure would make it easier but I don't have that option at my disposal.. On the other hand, I would probably have to pay a percentage to Steam and/or Leadwerks.
Adding buttons is easy and done within a few minutes. Adding the desired functionality to those buttons is more work. Still, its is a good idea and I will include it in the example.