I would like to build small program in Python3+ (or C++, Python3+ prefered here) which shows me a Status information in the GNOME3 Top Bar.
I already looked into GTK+3 but could not find anything about the Top Bar. Maybe I just do not know the exactly Name to look for. The Picture above shows the Top Bar, my tool should just showing a Status like my package manager, wifi or battery life in the right corner.
What Library would be good to add my Status there?