When you choose the Preferences menu item from the application (Script Debugger) menu, you summon the Preferences window. It has eight preference panes. These pages describe the options on each pane.

To navigate to any preference pane, click Show All in the toolbar. Now you can click a pane’s icon to navigate to it.

The toolbar in the Preferences window is customizable. Do not accidentally close the toolbar, since without it you cannot access the Show All button and you will have no way to navigate to the different preference panes.

The Factory Defaults button on each pane sets the options in that pane to the Late Night Software default values.

All changes to preference options take effect immediately — except for the Fonts & Colors preferences, which have to be set with the Apply button (because in this case, you’re talking to AppleScript, not to Script Debugger).