option

boot.loader.grub.splashImage

Background image used for GRUB. Set to null to run GRUB in text mode.

For grub 1: It must be a 640x480, 14-colour image in XPM format, optionally compressed with gzip or bzip2.

For grub 2: File must be one of .png, .tga, .jpg, or .jpeg. JPEG images must not be progressive. The image will be scaled if necessary to fit the screen.

Declarations
Type
null or path
Example
./my-background.png