How to I automatically make a printout lighter or darker?

 

To change the default settings for the program so they will be set the way you like everytime you print something just do the following:

 

On the main window click "Options".  Then click <Printing Options>. The following window will appear.

 

 

Check the 'Auto-lighten the printout' box.  And slide the bar from Darker to Lighter to suit your needs.