### - b -

- Borders : landscape_type.h
- BridgePieces : bridge.h
- BuildDockDepotWidgets : dock_gui.cpp
- BuildDockStationWidgets : dock_gui.cpp
- BuildRailDepotWidgets : rail_gui.cpp
- BuildRailStationWidgets : rail_gui.cpp
- BuildRailWaypointWidgets : rail_gui.cpp
- BuildRoadDepotWidgets : road_gui.cpp
- BuildRoadStationWidgets : road_gui.cpp
- BuildSignalWidgets : rail_gui.cpp
- BuildTreesWidgets : tree_gui.cpp
- BuyCompanyWidgets : company_gui.cpp