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When an application is running in Ubuntu, it displays an icon in the top left corner and also a title - "Terminal" when terminal runs, "Files" when file manager. For my app it shows "Unknown". I want to change that.

I inspected properties of the File Manager, and the word "Files" is not there. The name of the File Manager's Window is "Home".

I inspected the org.gnome.Nautilus.desktop file and it does have a line "Name=Files". But similarly, my app has such line in its *.desktop file.

Where does Ububtu (Gnome) takes the name which it displays in top left corner?

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1 Answers

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Solution: WM_CLASS property contains the name of the .desktop file which contains the information used by Ubuntu. Found this information here:

https://wiki.gnome.org/Projects/GnomeShell/ApplicationBased