This is a mod that replaces UndeadPeople terrain tiles with MshockXotto+ tiles (misplaced type variable error can be safely ignored) to install, place in your mods folder under dda/game0 (not in userdata), you also need the Undead People (https://github.com/Theawesomeboophis/UndeadPeopleTileset) tileset installed and enabled for this to work.
Bonus: Place the content of the Magiclysm folder inside your Magiclysm mod folder (usually located in your dda/game0 folder under mods) for more complete Magiclysm tiles