To save the changes made two commands are used: Style+Save and Style+Save As. All the changes in the editing pane do not affect the library contents until one of these commands is performed. The command Save As permits saving the style being edited under a different name, that is, a new style will appear in the library after performing this command.
To complete editing the command Style+Close should be performed. If saving of changes was not executed, before closing the window a question about the necessity to perform saving will be asked.