MaterialProperty attribute

[Luanrobs]

What it does
It lets you pick properties like _MainTex, _Color, or _Emission from a list dynamically filled with the property names from a Material referenced in another field, storing either the property name or its id (via Shader.PropertyToID) depending on the field type.
Similar to AnimationParameter attribute #200, but for Materials.

public Material material;

[MaterialProperty("material")]
public string propertyName;

[MaterialProperty("material")]
public int propertyId;