IS A COOL PHOTO ROOM...Triggers for Background : bg01 to bg17 Triggers for Scenes : sn01 to sn17 and sn for clear scene Triggers for help scene : helpon helpoff. For background, use a JPG to 32x32 pix (Material : P01-M01 to P17-M17 in your Previewer) For Scene use a pictures JPG to 256x256 or 512x512 pix (Material : P18-M20 to P34-M36 in your Previewer) For Help menu, use a picture JPG 256x256 or 512x512 (Material : P35-M18 in your Previewer) ADVICE : Not exceed 120 KB for each pictures, either a total of 2.048 KB (2 MB) for 17 pictures.