So in the end I was able to reprogram a remote and talk to my new tuner. Whether or not the tuner itself proves useful is beside the point. I take pride in my little achievement that no one but another engineer can appreciate. But I'm an engineer, and I'm supposed to be able to do things like that.
A title bar of GNOME Calculator. A title bar is a graphical control element and part of the window decoration. provided by some window managers. As a convention it is located at the top of the window as a horizontal bar.
Title Bar Buttons is the best term that I've come up with, but this is in no way official. If it's different for each window manager, then that would also be good to know. I couldn't find much searching around... Note: It would be nice to know the terms used by all platforms: Windows, Mac OS, GNOME, KDE, XFCE, etc.