I managed to discover how the code works, and I've edited the Nevato theme to add (via theme options), my Arcade Room theme.
For those interested, just unzip the file into nevato folder, join attract mode -> select theme -> nevato -> go to screen options -> choose "ArcadeRoom".
Now the banner is dynamic, and is located behind a mask with reflection, shadows and lighting to give more realism!
ps: after downloading the flyers, just do a batch files in adobe photoshop or other program, to resize to 495 W x 635 H, to fill better this theme.
I hope you enjoy!