The program is not stopping when closing the window

[Iltotore]

When closing the editor window, the program's process still runs. It might be due to the highlighting subscription not being manually cancelled.

[JordanViknar]

I noticed the same issue. No idea what causes it personally, though I suppose your idea would be worth a try.

[JordanViknar]

Doesn't seem to be because of the subscription after testing a bit...