Well put @kdrnic, I cannot argue with link rot 🙂
As for custom patch/textures, one requires the PNAMES and TEXTUREx lumps, this applies to new patches and replacing existing ones equally.
This adds around 20kb of book-keeping overhead to the WAD (not counting your image of course). Without these, the engine will seek the graphic data within the IWAD and overlook our PWAD.
Did you have the DGC logo in mind? Sounds a fun idea. Need any help with this? 🙂
