Grub is the most commonly used bootloader in Linux system. When you boot up your computer, the default Grub screen comes with a black background and white text. If that is fine with you, then this tutorial is not for you.
On the other hand, if you wish to beautify it with your favorite image, this tutorial covers 5 simple steps that you can follow to create and install your custom Grub splash theme.
1. Design your own image
Using any image editor, create an image that is of dimension 640×480. Keep your image simple and not too colorful. As Grub only supports 14-bit of color, if you use a colorful image, there will be a great loss of color and result in a distorted image later when we convert it to Grub compatible format. The best choice is to keep it simple, plain but nice. You can check out gnome-look.org for some inspiration.
Save the image (preferably in jpg or png format, but it doesn’t really matter).
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