Custom Graphics

Above is the custom field. You can save this to your computer and use it in the game. Click on it and save image as. Then wherever you save it on your computer, open it from there in paint. Save it as a 24 Bit Map (BMP). Go into your Strat-O-Matic File and go to Graphics, then go to Field and copy and paste the original game field somewhere (in case you want to use it again). Then rename your new bmp file field_center and it will appear in your game.
Note:  I don't know how to save this so it comes out a bmp from the web page. The original file is a bmp but it converts to jpg here.