RedlabsUIEffect_Color.cs

using DG.Tweening;
using UnityEngine;
using UnityEngine.UI;

[ExecuteAlways]
public class RedlabsUIEffect_Color : RedlabsUIEffect_Base
{
    [SerializeField] Graphic graphic;
    [SerializeField] Color activateColor = Color.white;
    [SerializeField] Color deactivateColor = Color.white;

    void Awake()
    {
        if(!graphic)
        {
            graphic = GetComponent<Graphic>();
            deactivateColor = graphic.color;
        }
    }

    public override void OnActivate()
    {
        graphic.DOColor(activateColor, 0.3f);
    }

    public override void OnDeactivate()
    {
        graphic.DOColor(deactivateColor, 0.3f);
    }
}