Provide typehints for UserMaterial
Provide typehints for UserMaterial

These are all nullable properties that were existing in an undefined
state.

Trott/ilios,stopfstedt/ilios,dartajax/ilios,Trott/ilios,ilios/ilios,ilios/ilios,thecoolestguy/ilios,dartajax/ilios,thecoolestguy/ilios,stopfstedt/ilios