Mr. Mysterio's Mod is ready to play the GameCube BIOS animation before every game launch. It's perfect if you can't find the BIOS files or want to see the animation on vWii with PAL games.
To use a custom background in Nintendont's menus, you can just place a background.png or background.jpg in your Nintendont folder where the boot.dol is with a resolution of 640x480.
You may specify a custom text color by placing the color's hexadecimal RGBA value in textcolor.ini placed in your Nintendont folder. (For example, "0000FFFF" is BLUE).
You can simply find RGB values on this website. The value of 'A' is recommended to be 'FF'.
You can also donwload MasterMod and original Nintendont right from the update menu.