- Made towers non-flammable (there's nothing to catch fire from)
- Adjusted the costs around the vanilla conveyor engine more precisely (small tower is cheaper, and the big tower is more expensive)
- Visuals: made inputs higher than the outputs by 2 meters for more realism
- VIsuals: reordered the inputs and outputs to make the sprites look better during the construction planning

- Rebalanced costs
- Changed the footwalk connection points to prevent overlapping with the conveyor belts