Contact sheet II change the script ?

does anybody know how to change the contact sheet II script? 

I wnat to default it with black BG and white caption color. 

for white font change line 6591

 self.fontColor       = ZStrs.white;

for black bacground change try...catch block at 7615-7626

  try {
    app.backgroundColor =psx.COLOR_BLACK 
    doc = app.documents.add(opts.docWidth,
                            opts.docHeight,
                            opts.resolution,
                            name,
                            opts.mode,
                            DocumentFill.BACKGROUNDCOLOR,
                            1,
                            bpc);
  } catch (e) {

And if non of this works: is there any other adobe app that can make a 

contacct sheet out of digital media? 

Try the Output workspace in Bridge.