Most of the program customization is done in the Options dialogs. See the Options section in the Help Table of Contents for full details.
Resets ALL options and settings to the original program installation values. Some settings will not take affect until the program is closed and restarted.
You can create a Translation for labels on the Game Display for any National Language in the Options -- Text and Fonts tab. This menu allows you to Export (save to a file) or Import (restore from file) your translations. The Restore English Translation will reset all Static Labels and Default Player Names to default English values.