Lepton is a mod about adding blocks that should already be in the game by default, such as vanilla stairs, slabs, walls, pressure plates, buttons, and more! It currently focuses on porting some forgotten Quark features from 1.12, but also includes some new features such as cracked sandstone.
Known Incompatibilities:
Plated - Causes a crash
Credits:
Rexschwert, for the Russian translation