Source of title screens?[edit]

Hi, there are no graphics lumps in asd2.wad, so I'm wondering what your source for its title screen is - am I overlooking something, or where did you find it?
The same question applies to enigma.wad, which does contain graphics but no title screen like your upload (although its background is X_MBROT5, but I didn't find anything resembling the rotated Enigma foreground). What is its source?
Thanks for clarifying. --Xymph (talk) 17:13, 21 August 2020 (CDT)