Show the name of the deck you are currently learning in the window title.
Taking a hint from some other applications, the deck name is shown before the application name.
The behavior of the add-on can be changed in a few points by editing the source file:
title_separator: What to print between the deck name and program name. Normally a spaced en-dash.
show_subdeck: Whether to show the subdeck you have descended into during learning or only the deck you clicked on in the deck browser.
subdeck_format: How the point between the selected deck and the one descended into is marked. Standard is an en-dash between the two colons.