Here. There are 4 pictures at the directory “system/_systemâ€ÂÂ: logo.bmp, icons.bmp, bckgrd_1.bm, and bckgrd_2.bmp. They are the background of the M3DS Simply operation interface; they can be changed to fit your style. logo.bmp – Background of the Top Screen of M3DS Simply ’s Startup. icons.bmp -- Background of the Bottom Screen of M3DS Simply ’s Startup. bckgrd_1.bmp -- Background of the Top Screen of M3DS Simply’s Explorer. bckgrd_2.bmp -- Background of the Bottom Screen of M3DS Simply’s Explorer. Note: Do not change the picture’s name; Make sure the picture is .bmp format, 8-bit/24-bit; Make sure the picture is 253*192 pixels. After finishing process on the pictures, copy the “_system†folder to the root directory of the CF card.