Nice to have, but stretch-goal features

[pipliz]

List of features that would be nice to have/improve/add, but that are currently on the backburner due to a lower triage rating. High effort / low reward / not terribly relevant to current gameplay, such things. Maybe they'll be added, maybe they won't.

• Client Modding API; especially for UI / interaction / animation style stuff it could be nice. Most game logic is already done on the server though, so for logic it's of limited use.
• Doors/gates that block monsters but allow colonists. Currently colonists and monsters use the same pathing mechanics, including some data that is baked and non-trivial. Dynamically opening/closing stuff would require quite a feature addition to that. Wouldn't want to have monsters path through an open gate 50 meters ahead when it closes 0.5 seconds later, then they walk into it, or really frequently re-path.