ModuleCategoryID :: stringExample code
Examples 
"productivity"
"efficiency"
Type used in
- AgriculturalTowerPrototype::allowed_module_categories
- BeaconPrototype::allowed_module_categories
- CraftingMachinePrototype::allowed_module_categories
- LabPrototype::allowed_module_categories
- MiningDrillPrototype::allowed_module_categories
- ModulePrototype::category
- RecipePrototype::allowed_module_categories
