V mod for 0 A.D.
See the forum thread here: https://wildfiregames.com/forum/topic/54074-shiny-an-alternative-main-menu/
You can enable/ disable the new background in the options.
This mod is compatible to the Delenda Est mod as long as you load it last/ after DE.
Credits to Langbart for many helpful comments and everyone else who gave their opinion and tips in the forum thread.