static get mediation() {

		return MSDFFontMaterialUtils.mediation;

	}
This static method is mandatory for extending ThreeMeshUI.MSDFFontMaterial
It will provide a transfer description for properties from ThreeMeshUI.Text to THREE.Material
@see {MSDFFontMaterialUtils.mediation}
@returns {Object.<{m:string, t?:(fontMaterial:Material|ShaderMaterial, materialProperty:string, value:any) => void}>}