Post processing control via script

PostScript.cs

using System.Collections;
using System.Collections.Generic;
using UnityEngine;
using UnityEngine.Rendering.PostProcessing;

public class PostScript : MonoBehaviour
{
    PostProcessVolume volume;
    ChromaticAberration chroAb;
    ColorGrading cGrad;

    void Start()
    {
        volume = gameObject.GetComponent<PostProcessVolume>();
        chroAb = volume.profile.GetSetting<ChromaticAberration>();
        cGrad = volume.profile.GetSetting<ColorGrading>();
    }

    void Update()
    {

        chroAb.intensity.value = Mathf.Abs( Mathf.Sin(Time.time) ) * 10;
        cGrad.hueShift.value = Mathf.Abs(Mathf.Sin(Time.time))*180;
    }
}