CwMaterialOverrides
Each modular background component has the MaterialOverrides setting, which allows you to override a specific material setting.
These overrides are stored in the Pairs list, which you can manually modify if your know the material property name and type.
To find the types, you can configure your background component in the editor, and click the Material Overrides / Add button to see a list.
Pairs
All material override property name and value pairs are stored here.