UX improvement for less clicks required in configuration windows. Say you change something in the System Configuration or Character Configuration windows, and you forget to click "Apply" before closing the window. At this point, a dialog box pops up asking if you want to close the window and discard all changes, or do nothing. But you obviously want to close the window, otherwise you wouldn't have clicked the X button. So, if you then want to save the changes, you have 3 more clicks to do so: click no, click apply, then click X. Why not have the two choices be to close the window and save the changes or close the window and not save the changes? Then, if you want to save the changes and forgot to click apply before clicking X, you're now only 1 click away from doing what you want to do instead of 3.