patches environments/env_apartment/env_apartment.environment to use the v1 version instead of current day.
Differences:

• Sky dome light is brighter (0.429 and 0.380 instead of 0.250 and 0.250) which results in the level looking brighter.
• There are animated clouds in the sky.

Images:

• First image shows the game on the current-day patch's environment file, second image shows the game with the patched V1 version of the environment file.