Common Assets
Common assets are assets that ship with ULTRAKILL. They don't get bundled with your map, and get referenced instead, keeping the size of your map low.
Important Warning
danger
Do not modify common assets!
It's best to pretend that everything inside of Common
folder is read-only, as that's how it'll be treated by the exporter.
Properly Modifying Common Assets
If you want to modify any common assets, such as textures or prefabs, you should copy them outside of the Common folder first.
You might have to update references to the copied assets.
For example, if you copy both a material and a texture, you will have to update the copied material to use the copied texture instead of the original one if you plan on editing it as well.
Terminology
note
Common Assets are sometimes referred to as Magenta.