How Crops was built
Raw game files read
worldgen/blockpatches/*.json
Processing
Each worldgen/blockpatches/*.json file is a flat list of placement rules -- a climate
band (temperature/rain/forest-density/fertility range) plus the literal, already-concrete block
codes it can place. Unlike deposits, no variant expansion or template substitution is needed here;
blockCodes already lists exactly what gets placed. The filename itself (e.g.
flowers.json, mushrooms.json) becomes this wiki's category label for
the patch.