GNOME-app-install is part of a GNOME based desktop. That is the reason why the user interface follows the HIG recommendations as far as possible. GNOME-app-install is NOT an instant apply dialog/application. So using explicit apply buttons seems to be a good choice.
Hiding or exchanging widgets on runtime is bad usability. It leads to confusion. A stable user interface gives the user orientation and a more secure feeling in using the app. Furthermore your suggestion doesn't take a11n into account, since it would break most screen readers. I agree that the generic ok button is not a perfect solution. I would prefer real terms that describe the action behind the button. But this would result in quite large buttons: "Install/Remove and close" and "Install/Remove". Finally many user would complain about having to click on close after applying the changes (see some old fixed bugs of update-manager). If apply also closes the dialog you would remove the possiblity from the user to install software step by step without having to restart g-a-i. Feel free to reopen the bug if you don't agree. Cheers, Sebastian ** Changed in: gnome-app-install (Ubuntu) Status: Unconfirmed => Rejected -- Add/Remove applications bad usability https://launchpad.net/bugs/90973 -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs