Yes, there is that thread he did about it, but he rolled it over to lurker_hlb3 to implement it into Operation Monsun. What you could do is take base copy Operation Monsun, and a copy of OMEGU 300, and run the Menu folder in a WinMerge compare, and you should find all the dds file names, as well as the differences between the two menu_1024_768.ini and the menu.txt files. There is quite a bit to it though. Kind of like comparing a regular SH4 to CapnScurvy's Optical Targeting Correction mod, even with his "notes" text files... There is a LOT to that

menu_1024_768.ini file... scary stuff.