It can see that they could look weird having them in the yellow part... but if the gray toolbar were moved from bottom to top, say, that could be a place to put them.
Very minor request, NOT worth putting much work into! If by some luck it's easy, maybe consider it.
Green/Zoom (Mac) could be disabled (or could take it Full Screen) but Close and Miminize would be welcome for consistency with other apps. Close just could work like Quit.
The equivalent system keyboard shortcuts would ideally work as well. Right now Minimize is grayed out in the menu—a shortcut I often use.