The Factorio Standard Library is a project to bring Factorio modders high-quality, commonly-required utilities and tools.
Lua libraries for use by other mods and submods that are parts of a larger mod.
Im on v1.0 and there seems to be an issue when selecting a new Blueprint Book. Im not shure if this already existed in 0.18.
Ive made a screenshot
https://imgur.com/oFxLNz7
