Wikipedia
StartUp-Manager
StartUp-Manager is a program to configure GRUB, GRUB2, Usplash and Splashy. It was originally an Ubuntu project, but was later adapted to Debian. StartUp-Manager is not compatible with Ubuntu versions after 11.10. [GRUB Customizer] is an option for later versions.
Development stopped on 6 May 2011 after the lead developer cited personal reasons for not actively developing the program. The developer is willing to let other people take over the project.