There is no software that does theming for GRUB that doesn’t break it badly and was stopped mid development and GRUB 2.0 takes deep knowledge of how it works to theme it without breaking it.

Hell the little bit of theming they added to Ventoy has them slowing GRUB updates to make sure that it is tested and tested again before they roll it out and break everyone’s install without knowing it.

I plan on doing it but I really don’t have time for it right now or any time in the future.

Minority group supporting fascist leader who is persecuting minorities different from him think persecuting a fellow minority group will keep them from being persecuted by the fascist leader they support and are surprised when it doesn’t work.