To create a ContentPack for CWF, write a standard manifest.json and add a "walls.png" and/or "floors.png" file.
Added Custom Walls and Floors can be obtained through the Wallpaper Catalogue.
Custom W&Fs are added, they do no override vanilla W&Fs.
Without ContentPacks this Mod does nothing.
Custom Walls & Floors does not work in Multiplayer.
Requires SMAPI & PyTK.
