Component to pass color to shader through property

ModifyColor.cs

using UnityEngine;
using System.Collections.Generic;

[ExecuteInEditMode]
public class ModifyColor : MonoBehaviour
{
    private static MaterialPropertyBlock materialPropertyBlock = null;

    [SerializeField]
    private string propertyName = "_Color";

    [SerializeField]
    private Color color = Color.white;

    [SerializeField]
    private Renderer renderer = null;

    private void LateUpdate()
    {
        if (materialPropertyBlock == null)
        {
            materialPropertyBlock = new MaterialPropertyBlock();
        }

        if (renderer != null)
        {
            for (int i = 0; i < renderer.sharedMaterials.Length; i++)
            {
                renderer.GetPropertyBlock(materialPropertyBlock, i);
                materialPropertyBlock.SetColor(propertyName, color);
                renderer.SetPropertyBlock(materialPropertyBlock, i);
            }
        }
    }
}