Use to show buildable land (excluding plants and cliffs) [virtual-signal=signal-green] = solid ground [virtual-signal=signal-red] = water and other obstacles

Originally shared on the public FactorioPrints / Factorio School archive (factorioprints.com · factorio.school). Authorship preserved from the public catalog.
Use to show buildable land (excluding plants and cliffs) [virtual-signal=signal-green] = solid ground [virtual-signal=signal-red] = water and other obstacles