There's not much to say here. This mod adds slabs, vertical slabs, stairs, and walls for all leaf-sets.
Mod Compat
-Autumnity
-Environmental
-Quark
-Upgrade Aquatic
-Atmospheric
-Architect's Palette
This mod is an add-on for the mod Lepton. However, it also requires Abnormals Core, because Lepton depends on that.
FAQ
1.12.2? Fabric? Any other version?
You can port it yourself, but I won't.
Newer version?
Same thing, but if I'm not dead I'll already be working on a port.
Compat with [MOD]?
You can either just mention the compat here, or submit a pull request to add it, if you know how to do that.
Project members
Gkoliver