What is the difference between prefab colors?

There are 3 types of prefabs.

Blue []:

Regular prefabs, you'll want to use these for the vast majority of applications.

Pink []:

This is how PrefabLibrary prefabs differ from their blue counterparts:

They can be placed from the PrefabLibrary, a special resource browser made for placement of common terrain objects.

Using parameters stored on the pink variant, the Prefab Library can automatically randomize things scale and rotation on placement.

If you are not currently using the Prefab Library, you can just stick to the blue variant.

Warning: PrefabLibrary prefabs cannot be edited, for example saving changes to an inheriting version will not work.

Orange []:

PrefabsEditable, these can be edited or deleted ingame by GMs.