After a configuration has been edited, it can be saved. For this, select the ChorusOS configuration item in the navigation tree (this is the root element of a configuration), and use its context menu. It is also possible to save it using the Save option in the File menu on the main menu bar, or the Save button on the toolbar.
A modified configuration is displayed in red, as a visual warning that the file has changed.
Build the system image, as described in the next section.