VandalByte/grub-tweaks — reverse-engineered prompt

Build me a small repo of clear, beginner friendly GRUB tweaking guides for Linux users who want to customize and fix their boot menu.

I want it to read like a practical handbook, with a main README and supporting docs, plus screenshots or images where helpful. Cover the common things people actually want, like changing the GRUB display resolution, adding a custom background, showing icons for submenu items, making a custom menu layout, setting up a theme on Kali, fixing themes that do not show on Fedora or Ubuntu, adding startup tunes, restoring a broken GRUB install, making custom pf2 fonts, testing themes safely, adding a GRUB password, and speeding up boot time.

Please make the instructions copy paste friendly, include the right commands for Debian, Ubuntu, Arch, Fedora, and Red Hat where relevant, and add strong warnings anywhere a mistake could break GRUB. Keep it simple and readable for someone who is not an expert but is comfortable editing system files. If you need details, look up current GRUB docs online.