ShaderGraph_ExampleLibrary/ShaderGraph_ExampleLibrary_Project/Assets/Scripts/ToonShaderLightSettings.cs

using System.Collections;
using System.Collections.Generic;
using UnityEngine;

[ExecuteInEditMode]
public class ToonShaderLightSettings : MonoBehaviour
{

	private Light light;

	void OnEnable()
	{
		light = GetComponent<Light>();
	}
	
	void Update ()
	{
		Shader.SetGlobalVector("_ToonLightDirection", -transform.forward);
		Shader.SetGlobalColor("_ToonLightColor", light.color);
	}
}