- Update icon and thumbnails

- Remove an accidentally placed prop with a missing model
- Adjust HDR settings so that the image doesn't get too dark
- Adjust lighting that was too bright
- Add a U-turn area to the end of the road tunnel beneath the airport
- Add gm_construct-style clouds to the daytime version
- Fix some misaligned brushes and props
- Optimize brushes

- Optimized materials and textures
- Removed unnecessary model files

- Fixed track switch derailment issue

- Added targetname to light_environment

- Added shadow_control

Hotfix 5
- Fixed missing environment maps for non-HDR version

Hotfix 4
- Fixed some parts of the car testing area sticking into the subway tunnels

Hotfix 3
- Increased car testing area ceiling height
- Improved lighting in car testing area
- Fixed track switch sounds playing across entire map
- Fixed accidental invisible faces on elevator door frames

Hotfix 2
- Fixed missing models and materials
- Fixed track switches sometimes derailing some trains (hopefully)
- Fixed oddly positioned light in subway
- Added missing light fixtures in underground parking